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Full text of "The Chicago Nut Manufacturing Company: catalogue no. 15:"

INTERNATIONAL 



Digitized by 

The Association for Preservation Technology International 

For the 

Building Technology Heritage Library 

http://archive.orq/details/buildinqtechnoloqvhe ritaaelibrary 



Hex. Brass 
Nuts 




tfE^ 



w 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



THE CHICAGO NUT 

MANUFACTURING 

COMPANY 



CATALOGUE 
No. IS 



Eastern Office and Warehouse 

58 WARREN ST., NEW YORK 



HOME OFFICE and FACTORY 

2513 WEST CULLERTON ST. 

CHICAGO 



L 



J\ 



Hex. Brass 
Nuts 



Square Brass 
Nuts 



Hex. Steel 
Nuts 



Square Steel 
Nuts 



S.A.E.&A.L.A.M ! 
Steel Nuts 



Semi Finished 
Steel Nuts 

Semi Finished 
Brass Nuts 



Brass 
Washers 

Brass Wing 
Nuts 



Steel Wing 
Nuts 



Brass Cap 

Nuts 



Knurled Brass 
Nuts 



Chicago 
Binding Screws 



Steel Tapei 
Pins 



Threaded 
Rods 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 






Plumbers' 

Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



Tables 



^~ 



w 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



«** 





# 






• 


® 




o 






$ 



^_ 



A 



T 



THE CHICAGO NUT MANUFACTURING CO. 

Brass 

Machine Screw Nuts 

Hexagon 

Special List Adopted by THE CHICAGO NUT MFG. CO. 



SIZE OF THREAD 


Outside 
Diameter 


THICKNESS 


List Price 


(Carried in Stock) 


Decimal 
of Inch 


B. &S. 
Gauge 


Per 1,000 


2-56, 2-64, 3-48, 3-56, 4-32, 4-36. . . 


$6 


.064 


14 


$ 3.50 


4-32, 4-36, 4-40, 4-48, 5-40, 6-32, 










8-32 


H 


.081 


12 


2.80 


5-40, 5-44, 6-32, 6-40, 8-32, 10-24, 




Q 10-32 


v& 


.091 


11 


3.40 


£ 6-32, 6-40, 8-32, 8-36, 10-24, 10-32. . 
S 8-32, 8-36, 10-24, 10-32 


V* 


.114 


9 


3.80 


H 


.102 


10 


4.20 


jjj 5-40, 8-32, 8-36, 10-24, 10-32, 
O 12-24, 12-28, 14-20, 14-24 








% 


.128 


8 


5.00 


3 12-24, 12-28, 14-20, 14-24, M-20, 










§ 1^-28 


14 


.114 


9 


5.60 


Q 12-24, 12-28, 14-20, 14-24, M-20, 








1^-28 


Vss, 


.144 


'7 


6.80 


14-20, 14-24, M-20, %-28, 16-18, 








16-20 


H 


.128 


8 


7.20 


14-20, 14-24, Jjf-20, 14-28, 16-18. . . 


H 


.162 


6 


9.00 


Q 14-20, 14-24, H-2Q, }^-28, foli. . . . 


Vi 


.181 


5 


10.80 


p* 18-18, %-18, 20-16, 20-18 


% 


.162 


6 


11.00 


S 18-18, 18-20, 5^.18, 20-16, 20-18, 
% 20-20. . 








% 


.218 


^ 


16.00 


U 5 16-18, 5^-24, 20-18, 24-16, ^-16. . . . 


H 


.162 


6 


15.00 


3 ?ii-18, 5 /l6-24, 20-18, 24-16, ^-16. ] . . 


% 


.250 


\c. 


22 . 40 




% 


.250 


K" 


26.40 


20 30-14 lifi-14, 14-20 


L 


.250 


K" 


30.00 







Special Sizes Made to Order in Quantities 



"^ 



&_ 



A 



Hex. Brass 
Nuts 



Square Brass 
Nuts 



Hex. Steel 
Nuts 



Square Steel 
Nuts 



S.A.E.&A.L.A.M. 
Steel Nuts 



Semi Finished 
Steel Nuts 



Semi Finished 
Brass Nuts 



Brass 
Washers 

Brass Wing 
Nuts 



Steel Wing 
Nuts 



Brass Cap 

Nuts 



Knurled Brass 
Nuts 



Chicago 
Binding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers" 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



Tables 



F^ 



V 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



« 















ku 



A 



^ 



T 



THE CHICAGO NUT MANUFACTURING CO. 



Brass 

Machine Screw Nuts 

Hexagon 

Single Chamfered, Heavy Pattern 

Standard or Hardware List — Adopted Aug. 15, 1921 



SPECIAL SIZES CARRIED IN STOCK 



Other Special Sizes Made to Order in Quantities 



"^ 





Standard Threads 
Carried in Stock 


DIMENSIONS 


List 
Price 
per 
100 


List 

Price 

per 

Gro. 


Size 


Outside 
Diameter 


Thick- 
ness 


2 


56, 64 


% 


He 


$1.05 


$1.51 


3 


48, 56 


% 


Hi 


1.05 


1.51 


4 


40, 48 


H 


% 


.75 


1.08 


5 


40, 44 


Hi 


% 


.75 


1.08 


6 


32, 40 


Hi 


% 


.75 


1.08 


8 


32, 36 


"42 


H 


.90 


1.30 


10 


24, 32 


% 


H 


1.20 


1.73 


12 


24, 28 


% 


% 


1.50 


2.16 


M 


20, 28 


H 


Hi 


1.95 


2.81 


% 


18, 24 


% 


Hi 


4.20 


6.05 


H 


16, 24 


N 


H 


5.70 


8.21 



4 


32, 36 


H 


% 


.75 


1.08 


10 


30 


H 


H 


1.20 


1,73 


14 


20, 24 


% 


Hi 


1.95 


2.81 


16 


18 


¥i 


% 


4.20 


6.05 


18 


18, 20 


% 


Its 


4.20 


6.05 


20 


16, 18, 20 


Y* 


% 


4.20 


6.05 


24 


16 


H 


H 


5.70 


8.21 



J\ 



Square Brass 
Nuts 



Hex. Steel 
Nuts 



Square Steel 
Nuts 



S.A.E.&AX.A.M. 
Steel Nuts 

Semi Finished 
Steel Nuts 

Semi Finished 
Brass Nuts 



Brass 
Washers 



Brass Wing 
Nuts 



Steel Wing 
Nuts 



Brass Cap 
Nuts 



Knurled Brass 

Nuts 



Chicago 
Binding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers* 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



Table 



V 



THE CHICAGO NUT MANUFACTURING CO. 



^1 








^ 




&_ 



J^ 



V 



&_ 



THE CHICAGO NUT MANUFACTURING CO. 



Brass 

Machine Screw Nuts 

Square 

Standard List Adopted Aug. 15, 1921 



SPECIAL SIZES CARRIED IN STOCK 



Other Special Sizes Made to Order in Quantities 



"^ 




4 


32, 36 


H 


%L 


.64 


.92 


14 


20, 24 


% 


% 


1.66 


2.39 


16 


18, 


M 


% 


3.57 


5.14 


18 


18, 


% 


7 42 


3.57 


5.14 


20 


16, 18 


% 


% 


3.57 


5.14 


24 


16, 


% 


H 


4.85 


6.98 



Jl 



Square Brass 
Nuts 



Hex. Steel 
Nuts 



Square Steel 
Nuts 

S.A.E.&A.L.A.M. 
Steel Nuts 



Semi Finished 
Steel Nuts 



Semi Finished 
Brass Nuts 



Brass 
Washers 

Brass Wing 
Nuts 



Steel Wing 
Nuts 



Brass Cap 

Nuts 



Knurled Brass 

Nuts 



Chicago 
Binding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers* 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



Tables 



s^ - 



V 



THE CHICAGO NUT MANUFACTURING CO. 



^55 



"^ 



« 




^*=^ 










&1 



^_ 



J\ 



T 



iE CHICAGO NUT MANUFACTURING CO. 

Steel 

Machine Screw Nuts 

Hexagon 

Standard List Adopted Aug. 15, 1921 



SPECIAL SIZES CARRIED IN STOCK 



Size 


Standard Threads 
Carried in Stock 


DIMENSIONS 


List 
Price 
per 
100 


List 
Price 

per 
Gro. 




Outside 
Diameter 


Thick- 
ness 


2 


56, 64 


% 


% 


$0.35 


$0.50 


3 


48, 56 


Vk 


He 


.35 


.50 


4 


40, 48 


H 


% 


.25 


.36 


5 


40, 44 


%, 


% 


.25 


.36 


6 


32, 40 


V* 


% 


.25 


.36 


8 


32, 36 


% 


Vs 


.28 


.40 


10 


24, 32 


H 


H 


.30 


.43 


12 


24, 28 


% 


% 


.38 


.55 


H 


20, 28 


H 


% 


.50 


.72 


X& 


18, 24 


%, 


% 


.85 


1.22 


% 


16, 24 


X 


H 


1.10 


1.58 


% 


14 


% 


% 


1.60 


2.30 


H 


13 


H 


hi 


2.30 


3.31 



4 


32, 36 


H 


%2 


.25 


.36 


6 


36 


H, 


14i 


.25 


.36 


8 


32 


M 


H 


.28 


.40 


10 


30 


H 


H 


.30 


.43 


12 


32 


% 


H 


.38 


.55 


14 


20, 24 


% 


%2 


.50 


.72 


16 


18, 20 


H 


% 


.85 


1.22 


18 


18 


Hi 


%L 


.85 


1.22 


20 


16, 18 


% 


%2 


.85 


1.22 


24 


16 


% 


H 


1.10 


1.58 



Standard Iron Pipe Size Nuts Carried in Stock Tapped: y % \ l A\ %" 

Prices Quoted on Application. 

Other Special Sizes Made to Order in Quantities 



"^ 



&_ 



J 



Hex. Steel 
Nuts 



Square Steel 
Nuts 



S.A.E.&A.L.A.M. 
Steel Nuts 



Semi Finished 
Steel Nuts 



Semi Finished 
Brass Nuts 



Brass 
Washers 

Brass Wing 
Nuts 



Steel Wing 

Nuts ' 



Brass Cap 
Nuts 



Knurled Brass 

Nuts 



Chicago 
Binding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers* 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



Tables 



w^ 



W 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



"'■.' ^ §SM0 : W:i SSw.X 





^ 




L 



.A 



10 



SF^ 



W 



ku 



iE CHICAGO NUT MANUFACTURING CO. 

Steel 

Machine Screw Nuts 

Square 

Standard List Adopted Aug, 15, 1921 



SPECIAL SIZES CARRIED IN STOCK 



Other Special Sizes Made to Order in Quantities 



Size 


Standard Threads 
Carried in Stock 


DIMENSIONS 


List 
Price 
per 
100 


List 




Outside 
Diameter 


Thick- 
ness 


per 
Gro. 


2 


56, 64 


Hi 


Me 


$0.29 


$0.42 


3 


48, 56 


% 


Hi 


.29 


.42 


4 


40, 48 


X 


%. 


.22 


.31 


5 


40, 44 


V* 


% 


.22 


.31 


6 


32, 40 


5 /fe 


% 


.22 


.31 


Hi 


28 (Stove Bolt) 


% 


Vs 


.24 


.35 


8 


32, 36 


% 


H 


.24 


.35 


16 


24 (Stove Bolt) 


N 


Vs 


.26 


.37 


10 


24, 32 


Vs 


Vs 


.26 


.37 


12 


24, 28 


Us 


% 


.32 


.46 


H 


18 (Stove Bolt) 


H 


%, 


.43 


.62 


H 


20, 28 


H 


% 


.43 


.62 


% 


18, 24 


v* 


% 


.72 


1.04 


W 


16, 24 


% 


H 


.94 


1.35 



4 


32, 36 


H 


%t 


.22 


.31 


14 


20, 24 


Vm 


%2 


.43 


.62 


16 


18, 20 


H 


% 


.72 


1.04 


18 


18 


% 


% 


.72 


1.04 


20 


16, 18 


%> 


% 


.72 


1.04 


24 


16 


% 


M 


.94 


1.35 



■^ 



=d 






Square Steel 
Nuts 



S.A.E.&A.L.A.M. 
Steel Nuts 



Semi Finished 
Steel Nuts 



Semi Finished 
Brass Nuts 



Brass 
Washers 

Brass Wing 
Nuts 



Steel Wing 
Nuts 



Brass Cap 
Nuts 



Knurled Brass 
Nuts 



Chicago 
iding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 






11 



Plumbers' 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



Tables 



^THE CHICAGO NUT MANUFACTURING CO." 



V 



"^ 




^_ 



Js 



12 



w^ 



THE CHICAGO NUT MANUFACTURING CO. 



S. A. E. and A. L. A. M. 
Plain Steel Nuts 



Special Sizes Made to Order in Quantities 



"^ 



SIZE 

(Carried in Stock) 


Diameter 


Thickness 


List 

Price 

Per 100 




M-28 


(ALAM) Yi 


% 


$2.00 




M-28 


(SAE) % 


% 


2.00 




%-24 


V* 


>% 


2.50 




^-24 


% 


% 


3.25 




Ke-20 


(SAE) J* 


N 


3.75 




H-20 


K 


% 


4,50 




%-18 


H 


% 


5.50 




H-l* 


% 


3 % 


6.50 




M-16 


(SAE) 1^6 


% 


8.50 




Vs-U 


IK 


4 % 


12.00 




1-14 


1% 


H 


17.50 





^_ 



A 



S.A.E.&A.L.A.M. 
Steel Nuts 



Semi Finished 
Steel Nuts 



Semi Finished 
Brass Nuts 



Brass 
Washers 

Brass Wing 
Nuts 



Steel Wing 
Nuts 



Brass Cap 

Nuts 



Knurled Brass 
Nuts 



Chicago 
Binding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 






Plumbers* 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



13 



Tables 



V 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 













L 



j^ 



14 



w 



THE CHICAGO NUT MANUFACTURING CO. 



Steel 

Semi-Finished Nuts 

Hexagon 

Full and Jam (or Check) Nuts 



Special Sizes Made to Order in Quantities 



"^ 



SIZE 

(Carried in Stock) 


Diameter 


THICKNESS 


List Price 
Per 100 




Full Nut 


Jam Nut 




Ke-24 


H 


% 


. , 


$2.00 


M-20 


X 


K 


% 


2.00 


Sii-18 


% 


Hi 


% 


2.50 


H-W 


>« 


N 


M 


3.25 


Ke-14 


% 


J* 


% 


3.75 


K-12 


H 


X A 


% 


4.50 


^-13 


K 


H 


% 


4.50 


Hrl2 


% 


%. 


% 


5.50 


Jfril 


lHe 


% 


N 


6.50 


M-10 


1M 


H 


% 


8.50 


Jf9 


l'/fe 


H 


H 


12.00 


1-8 


1J* 


1 


% 


17.50 



&_ 



J\ 



Semi Finished 
Steel Nuts 



Semi Finished 
Brass Nuts 



Brass 
Washers 

Brass Wing 
Nuts 



Steel Wing 
Nuts 



Brass Cap 
Nuts 



Knurled Brass 
Nuts 



Chicago 
Binding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers" 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



15 



Tables 



y 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 




&_ 



_^ 



16 



w^ 



THE CHICAGO NUT MANUFACTURING CO. 



Brass 

Semi-Finished Nuts 

Hexagon 

Full and Jam (or Check) Nuts 

Milled from Hexagon Brass Rod 



Special Sizes Made to Order in Quantities 



"^ 



SIZF 
(Carried in Stock) 


Diameter 


THICKNESS 


List Price 
Per 100 






Full Nut 


Jam Nut 




^6-24 


% 


% 




$1.40 


M-20 


X 


M 


%. 


2.40 


%-18 


% 


5 ^ 


1& 


3.20 


^-16 


H 


*i 


X 


5.20 


Hi-M 


X 


% 


% 


7.20 


14-12 


X 


X 


Vm 


9.60 


X-13 


X 


X 


y K 


9.60 


hfU 


% 


Hi 




15.00 


H-u 


IHe 


% 


% 


17.00 


H-io 


1>* 


% 


X, 


27.00 


%9 


1% 


X 


X 


45.00 


1-8 


1H 


l 


%, 


68.00 



J 



Semi Finished 
Brass Nuts 



& 



Brass 
Washers 

Brass Wing 
Nuts 



Steel Wing 
Nuts 



Brass Cap 
Nuts 



Knurled Brass 
Nuts 



Chicago 
Binding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



17 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers' 
Supplies 



Machir 
Screw: 



Screw Machine 
& Special Work 



Tables 



!F^ 



V 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 














&_ 



A 



18 



1 


P^~ 










~~ ^_ 




Tnt- UniUAUU NU 1 MANUrAL'L'UrUNU UU. 

i . }, — iV — — i 




Y 


^ 


Brass Washers 


The following Brass Washers are sizes which are made up to fit machine screws and bolts, 
and are regularly carried in stock by us. Special sizes made to order in lots of no t less than 50 lbs. 


Size of 












Machine 
Screw 

or 
Bolt 


Outside 
Diameter 


Inside 
Diameter 


Thickness 


List 
Price 
per 
Lb. 


Approximate 
Number 
to the 
Pound 


SMALL PATTERN 


No. 3 


v± 


,101 


.020 


$2.00 


4000 


No. 4 


% 


.125 


.025 


1.50 


2500 


No. 6 


Vs 


.150 


.032 


1.00 


1100 


No. 8 


H 


.170 


.032 


1.00 


1170 


No. 10 


Hi 


.195 


.036 


.90 


760 


No. 12 


H 


.228 


.040 


.80 


525 


No. 14 


Vs.* 


.260 


.040 


.80 


420 


No. 16 


H 


.285 


.040 


.75 


340 


No. 18 


% 


% 


.051 


.75 


230 


No. 20 


H 


% 


.064 


.75 


150 


No. 24 


Vs 


.385 


.064 


.75 


110 


LARGE PATTERN 


No. 8 


7 /i'o 


.170 


.036 


.90 


725 


No. 10 


y 2 


.195 


.040 


.80 


480 


No. 12 


% 


.228 


.040 


.80 


380 


No. 14 


% 


.260 


.051 


.75 


210 


No. 16 


H 


.285 


.064 


.75 


135 


No. 18 


Vs 


% 


.064 


.75 


100 


No. 20 


Vs 


% 


.064 


.75 


103 


No. 24 


1 


.385 


.081 


.70 


64 


BOLT SIZES 


% 


H 


.195 


.040 


.80 


480 


H 


n 4i 


.260 


.051 


.75 


210 


% 


Vs 


% 


.064 


.75 


103 


% 


1 


.385 


.081 


.70 


64 


v% 


1% 


H 


.081 


.70 


45 


Vi 


IN 


% 


.091 


.70 


29 


% 


Ws 


% 


.091 


.70 


21 


% 


2 


l % 


.125 


.70 


10 


v% 


2Vs 


l Vm 


.144 


.70 


6 


i 


2V 2 


m 


.144 


.70 


5^ 


Special Sizes Made to Order in Quantities of Not Less Than 50 Lbs. 


^ J 


■ ' 



Brass 
Washers 

Brass Wing 
Nuts 



Steel Wing 

Nuts 



Brass Cap 
Nuts 



Knurled Brass 
Nuts 



Chicago 
tiding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers* 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



19 



Tables 



r. 



y 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 




Wl^J 





^_ 



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20 



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THE CHICAGO NUT MANUFACTURING CO. 



^ 



Brass 

Wing Nuts 
Pressed 

We manufacture pressed brass wing nuts of smooth finish 
and uniform dimensions, which present a far better appearance 
than the ordinary cast brass nuts. The smooth finish of this nut 
makes it especially suitable for nickel plating. 




Special Sizes Made to Order in Quantities 



^_ 



21 



Size 


SIZE OF THREAD 

(Carried in Slock) 


DIMENSIONS 


List 


A 


B 


D 


W 


Price 
Per 

100 


Style A 


4-36, 4-40, 4-48, 5-40, 5-44, 
6-32, 6-40, 8-32, 8-36 


'% 


2 % 


% 


H 


$1.50 


Style B 


10-24, 10-32 


Hi 


8 % 


% 


U A 


1.80 


Style C 


12-24, 12-28, 14-20, 14-24, 
M-20, M-28. 


2 % 


S % 


% 


m 


2.25 


Style E 


16-18, 18-18, 20-18, He-18. 


2 % 


«% 


H6 


IH 


3.75 


Style F 


24-16, %-16, %-24, 
%-14, %-20 


% 


5 % 


% 


\% 


5.50 



_^ 



Brass Wing 
Nuts 



Steel Wing 
Nuts 



Brass Cap 
Nuts 



Knurled Brass 
Nuts 



Chicago 
Binding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



r 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers' 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



Tables 



^~ 



V 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 












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^_ 



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22 



w 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



Steel 

Wing Nuts 

Pressed 

Our new line of steel wing nuts have the strength of drop forged 
nuts, and are as cheap as malleable nuts, with an appearance better 
than either. The smooth finish of this nut makes it especially suitable 
for nickel plating. 



L» w — A 




H--D-H 



SIZE 


SIZE OF THREAD 
(Carried in Stock) 


DIMENSIONS 


List 




w 


H 


D 


h 


Per 
100 


Style R 


6-32, 6-40 




H 
H 


l %2 




$1.25 
.90 

1 00 


Style R 
Style S 


8-32, 8-36, 10-24, 10-32, 
12-24, 12-28, %-24 

14-20, 14-24, 16-18, 16-20, 
Ji-20, M-28 


Style T 


M-20, 20-16, 20-18, 5^-18, 
%-24 


1 25 


Style U 


24-16, 3^-16, J6-24. 


1.60 









Special Sizes Made to Order in Quantities 



ku. 



J] 



Steel Wmg 
Nuts 



Brass Cap 
Nuts 



Knurled Brass 
Nuts 



Chicago 
Binding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers' 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



23 



Tables 



^THE CHICAGO NUT MANUFACTURING CO." 



^~ 



"^ 



Sm 



® 



(3& 



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^_ 



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24 



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THE CHICAGO NUT MANUFACTURING CO. 



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Brass 

Cap Nuts 
Hexagon 



SIZE OF THREAD 
(Carried in Stock) 



6-32, 8-32.., 

10-24, 10-32, 12-24, 
14-20, 14-24, M-20 
J^-20, 16-18, 18-18 

Ke-18, 20-18 

24-16, ^-16, J^-24 
%-14, J6-12, H-13 
«-H 



Diameter 

of 

Hexagon 

Base 



H 
Hi 

H 



Height 






Special Sizes Made to Order in Quantities 



^ 



25 



List 
Price 
Per 
100 



$0.80 

1.00 
1.25 
1.60 

2.00 

2.80 

4.50 

15.00 



-^ 



A 



Brass Cap 

Nuts 



Knurled Brass 

Nuts 



Chicago 
Binding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers' 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



J 



Tables 



w 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 







^ 



A 



26 



w 



""THE CHICAGO NUT MANUFACTURING CO." 



MF 



Brass 
Knurled Nuts 



SIZE OF THREAD 
(Carried in Stock) 



4-36 

6-32 

*8-32 Small Pattern 
8-32 Large Pattern 

10-24, 10-32 

12-24 

14-20. 



Diameter 

of 

Head 


Height 


Vb 


% 


% 


% 


2 % 


'% 


Vk 


Hi 


l A 


2 ¥4 


% 


•Hi 


Vs 


v% 



List 

Price 

Per 100 



$1.20 

1.20 

.70 

1.30 
1.50 

1.70 
2.00 



^ 



*8-32 small pattern is countersunk on bottom side and tapped slightly oversize 
for quick assembling, and is regularly used on dry cells or batteries. 



Special sizes made to order on quantities of 5,000 or over. 



^_ 



Ja 



Knurled Brass 
Nuts 



Chicago 
Binding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers' 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



27 



Tables 



^ 



V 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 










L 



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28 



T 



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THE CHICAGO NUT MANUFACTURING CO. 
Chicago Binding Screws 

Heads '/&" Diam. Body Vie" Diam. \i ' Screws have Male Screws \i ' Long. 
Screws y% ' and Longer have Male Screws H " Long. 



L~ 



. 



R 



Made of Brass— Will Not Rust 



Length 
Carried 

in 
Stock 


List 
Price 
Per 100 
Plain 
Brass 


List 

Price 

Per 100 

Nickel 

Plated 


Length 
Carried 

in 
Stock 


List 
Price 
Per 100 
Plain 
Brass 


List 

Price 

Per 100 

Nickel 

Plated 


K' 


$3.20 


$4.20 


IK' 


$ 6.40 


$ 7.40 


K' 


3.80 


4.80 


IK' 


6.80 


7.80 


W 


4.20 


5.20 


2" 


9.00 


10.00 


W 


4.80 


5.80 


2V 2 " 


10.00 


11.00 


H' 


5.20 


6.20 


3" 


11.00 


12.00 


V 


5.60 


6.60 


3H" 


12.75 


13.75 


IK' 


6.00 


7.00 


4" 


15.00 


16.00 



Full Expansion 
Chicago Binding Screws 

Full Expansion Screws Have Male Screw Same 
Length as Female Screw 






in 
If 



Made of Brass— Will Not Rust 




LENGTH 

(Carried in Stock) 


List 

Price 

Per 100 

Plain Brass 


List 

Price 

Per 100 

Nickel Plated 


X' 


$ 6.50 


$ 7.50 


K' 


7.50 


8.50 


K' 


8.50 


9.50 


v 


9.50 


10.50 


IK' 


10.50 


11.50 



"^ 



J\ 



Chicago 
Binding Screws 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



29 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers' 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



Table 



w 



^THE CHICAGO NUT MANUFACTURING CO.^ 



Jr^= 



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30 



&*- 



T 



THE CHICAGO NUT MANUFACTURING CO. 

= — = ^ ^ — 



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Steel 

Taper Pins 

Standard 

Taper x /i n to the foot 

LIST PRICE CENTS PER 100 



Diameter at 
Large End 


.141 


.156 


.172 


.193 


.219 


.250 


.289 


.341 


.409 


.492 


.591 


.706 


Approximate 
Fractional Sizes 


% 


% 


n 4i 


% 


% 


H 


% 


% 


% 


H 


% 


% 


Number 


00 





1 


2 


3 


4 


5 


6 


7 


8 


9 


10 




180 

180 


180 
180 


200 
200 


210 


230 


250 


275 


300 












H 

% 


LARGE 
SIZES 




i 


205 


205 


225 


235 


255 


275 


300 


325 


375 






1M 


230 


230 


250 


260 


280 


300 


325 


350 


400 


465 






1H 


255 


255 


275 


285 


305 


325 


350 


375 


425 


500 


700 


900 


m 




280 


300 


310 


330 


350 


375 


400 


450 


540 


750 


950 


2 




305 


325 


335 


355 


375 


405 


435 


475 


580 


800 


1000 


2M 






375 


360 
385 


380 
405 


400 
425 


440 
475 


475 


525 


625 
675 


860 
920 


1075 


2V2 


520 


575 


1150 


2% 








410 


430 


450 


510 


570 


625 


725 


980 


1225 


3 






425 


435 


455 


475 


545 


625 


675 


780 


1050 


1325 


3M 














580 


675 


725 


840 


1120 


1425 


3H 










505 


525 


615 


725 


775 


900 


1190 


1525 


$H 
















775 


825 


960 


1260 


1625 


4 


















685 


825 


875 


1020 


1330 


1725 










4J^ 






SMALL 










975 


1140 


1470 


1925 


5 






SIZES 










1075 


1260 


1610 


2125 


















1380 


17b0 


232i> 


6 


















1500 


1890 


2525 



Special Sizes Made to Order in Quantities 



k. 



A 



Steel Taper 
Pins 



Threaded 
Rods 



Knurled 
Screws 



31 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers* 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



Tables 



<F* 



yr 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



^_ 



J\ 



32 



W^ 



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ku 



THE CHICAGO NUT MANUFACTURING CO. 



THREADS 



6-32 

8-32 

10-32 
10-24 
12-24 
14-20 
14-24 
14-27 
M-20 
5 ^6-18 



Brass and Steel 
Threaded Rods 

Continuous Thread 



Lengths 

Carried in 

Stock 



1 foot 

1 foot 
lfoot 
lfoot 

2 feet 
2 feet 
2 feet 
2 feet 
2 feet 
2 feet 



List Price Per 100 Feet 



STEEL 



$3.50 



Special Sizes Made to Order in Quantities 



BRASS 



$5.00 



^ 



3.75 


5.50 


4.00 


7.00 


4.00 


7.00 


5.00 


8.50 


6.00 


10.00 


6.00 


10.00 


6.00 


10.00 


6.00 


10.00 


7.50 


18.00 



J\ 



Threaded 
Rods 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 



v — 



Plumbers' 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



33 



Tables 



^ 



w 



THE CHICAGO NUT MANUFACTURING CO. 





I 



^ 




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Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers* 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



35 



Tables 



V 



SF^ 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 








^_ 




J\ 



36 



s^ 



^~ 



iE CHICAGO NUT MANUFACTURING CO. 

Brass 

Knurled Screws 

Style No. 1 

Carried in Stock 



^ 



kL. 



"^ 



Size 
of 


Diameter 

of 

Head 


LIST PRICE PER 100 


Thread 


M Inch 


H Inch 


llnch 


4-36 


% 


$1.50 


$1.90 




6-32 


H 


1.75 


2.10 


$2.50 


8-32 


% 


2.00 


2.40 


2.90 


10-24 


H* 


2.40 


2.80 


3.30 


12-24 


H 


3.00 


3.50 


4.10 


14-20 


% 


3.50 


4.20 


5.00 



Special Sizes Made to Order in Quantities 

Steel and Brass 

Knurled Screws 

Style No. 2 

Carried in Stock in Both Steel and Brass 



Size 
of 


Diameter 

of 

Head 


LIST PRICE PER 100 


Thread 


H Inch 


H Inch 


llnch 


1% Inch 


6-32 


% 


$ .80 


$ .90 


$1.00 




8-32 


*6 


.90 


1.00 


1.10 




10-24 


** 


1.00 


1.10 


1.25 


$1.40 


12-24 


H 


1.25 


1.40 


1.55 


1.70 


14-20 


9 /fe 


1.40 


1.60 


1.80 


2.00 



Special Sizes Made to Order in Quantities 



A 



Knurled 
Screws 



Toggle 
Bolts 



Expansion 
Bolts 



Plumbers' 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



37 



Tables 



Jr 



w 



^ 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 




'^•itnuiMh. Miu,iHi 



A J AX 



O 



1 







^ 



38 



V 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



Ajax 
Toggle Bolts 

Packed in Cartons of 50 Each 







STYLE AND LIST PRICE PER 100 


Size 












Regular 


Molding 


Flat 


Plumbers 


*J/sx3 N.P. 


$5.00 








*Kx4 N.P. 


5.40 








J/6x3 Plain 


3.40 


$3.40 






Hx4 ■ 


3.80 


3.80 






%x3 - 


3.60 


3.60 


$3.20 


$6.60 


3 4ex4 " 


4.00 


4.00 


3.40 


7.00 


3 /f 6 x6 " 


4.80 


4.80 


3.80 


7.80 


K*& " 


4.00 


4.00 


4.00 


8.00 


Mx4 B 


4.40 


4.40 


4.40 


8.40 


Jix6 ■ 


5.20 


5.20 


5.20 


9.20 



* Nickel Plated, used For Bathroom Fixtures. 




Ajax Boiler Repairs 

LIST PRICE PER DOZEN, $2.50 



&u 



A 



Toggle 
Bolts 



Expansion 
Bolts 






Plumbers' 
Supplies 



Machine 
Screws 



Screw Machine 
& Special Work 



39 



Tables 



j 



w^ 



w 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



"^ 







^_ 



40 






A 



^ 



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THE CHICAGO NUT MANUFACTURING CO. 



Ajax 

Expansion Bolts 

Styles 1 and 2 

Packed in cartons of 100 each 



Shields Only. With Nuts. 



"^ 



Machine 
Screw Thread 


8-32 


10-24 


14-20 


Length 


LIST PRICE PER 100 


of Bolt 


H 


M 


H 


1 

2 

2V 2 
3 
4 


$5.50 
6.00 
6.50 
7.50 


$ 6.00 

6.50 

7.00 

8.00 

10.00 

12.50 


$ 9.00 
9.50 
10.00 
11.50 
13.50 
16.00 
24.00 





Outside Diameter of Shield 


Length 

of 
Shield 


% 


% 


H 




LIST PRICE PER 100 


H 

IK 


$4.50 
5.50 


$4.50 
5.50 


$6.50 
7.50 



Ji 



41 



Screw Machine 
& Special Work 



Table: 



w 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



M-20 THREADED BRASS ROD 
Carried in Stock in 2-foot lengths 



uA 



NICKEL PLATED CAP NUTS 
Tapped M-20 to fit above rod. Carried in stock 







ROUGH M-20 HEXAGON BRASS NUTS 
Used on back of marble work where they do not show. Carried in stock 




CLOSET SCREWS WITH N. P. LOOSE HEAD 

Machine screw thread extra long so that top may be cut off if screw strikes nail 
in the floor. Carried in stock in solid brass or iron 



mmmsmsm 



BRASS FLOAT RODS 
Made to order only 



&_ 



Js 



42 



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THE CHICAGO NUT MANUFACTURING CO. 




W BRASS CLOSET BOLT WITH N. P. OPEN NUT 
Carried in stock 1%" long 




e" BRASS CLOSET BOLT WITH N. P. OPEN NUT 
Carried in stock \%" and 2 3^" long 




N. P. OVAL BRASS WASHERS 
To fit Closet Screw and Bolt. Carried in stock 



Itll 1 Q 



AJAX 



'«'«««W»h«««« 



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TOGGLE BOLTS 

See page 38 




EXPANSION BOLTS 

See page 40 



"^ 



J\ 



Screw Machine 
& Special Work 



43 



Tables 



THE CHICAGO NUT MANUFACTURING CO. 




&*- 



y 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



Steel • 
Machine Screws 

List of June 15, 1921 

LIST PRICE PER GROSS 



Threads 
Per 


56 


48 


40 


32 


32 


24 


24 


20 


18 


16 


Inch 


64 


56 


48 


40 


36 


32 


28 


28 


24 


24 


Diam. 


2 


3 


4 


6 


8 


10 


12 


X 


% 


H 


Length 






















Vs 


$0.30 


$0.30 


$0.30 


$0.35 














Vm 


.30 


.30 


.30 


.35 


$0.40 












l A 


.30 


.30 


.30 


.35 


.40 


$0.60 










% 


.32 


.32 


.32 


.37 


.44 


.65 


$0.75 


$1.15 






H 


.32 


.32 


.32 


.37 


.44 


.65 


.75 


1.15 






% 


.34 


.34 


.34 


.39 


.48 


.70 


.80 


1.20 






H 


.34 


.34 


.34 


.39 


.48 


.70 


.80 


1.20 


$2.00 


$2.40 


% 


.37 


.37 


.37 


.42 


.52 


.75 


.85 


1.25 


2.10 


2.50 


% 


.41 


.41 


.41 


.46 


.56 


.80 


.90 


1.30 


2.20 


2.60 


Vs 


.45 


.45 


.45 


.50 


.60 


.85 


.95 


1.40 


2.30 


2.70 


1 






.50 


.55 


.65 


.90 


1.00 


1.50 


2.40 


2.80 


Ws 






.55 


.60 


.70 


1.00 


1.10 


1.60 


2.60 


3.00 


IH 






.60 


.65 


.75 


1.10 


1.20 


1.75 


2.80 


3.20 


IH 






.70 


.75 


.85 


1.30 


1.40 


2.10 


3.20 


3.60 


W 








.95 


1.05 


1.50 


1.60 


2.50 


3.60 


4.20 


2 








1.15 


1.25 


1.70 


1.80 


2.90 


4.00 


4.60 


2K 










1.45 


1.90 


2.20 


3.30 


4.40 


4.80 


2V 2 










1.65 


2.20 


2.50 


3.50 


4.90 


5.30 


m 










1.90 


2.50 


2.90 


4.00 


5.40 


5.90 


3 










2.30 


2.90 


3.50 


4.50 


6.00 


7.40 



NOT CARRIED IN STOCK 
Made to order in Quantity only 



&_ 



45 



A 



1L 



Tables 



!F^ 



V 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 





&_ 



1 



46 



^^ 



w 



THE CHICAGO NUT MANUFACTURING CO. 



Brass 

Machine Screws 

List of June 15, 1921 

LIST PRICE PER GROSS 



Threads 
Per 


56 


48 


40 


32 


32 


2t 


24 


20 


18 


16 


Inch 


64 


56 


48 


40 


36 


32 


28 


28 


24 


24 


Diam. 


2 


3 


4 


6 


8 


10 


12 


M 


Vk 


H 


Length 






















H 


$0.32 


$0.32 


$0.36 


$0.46 














% 


.32 


.32 


.36 


.46 


$0.70 












H 


.32 


.32 


.36 


.46 


.70 


$1.00 










% 


.34 


.34 


.38 


.49 


.75 


1.05 


$1.35 


$2.80 






H 


.36 


.36 


.40 


.52 


.80 


1.10 


1.45 


2.90 






% 


.38 


.38 


.42 


.55 


.85 


1.15 


1.55 


3.05 






H 


.40 


.40 


.44 


.58 


.90 


1.25 


1.65 


3.20 


5.00 


5.75 


H 


.46 


.46 


.50 


.66 


1.00 


1.45 


1.85 


3.50 


5.50 


6.50 


H 


.52 


.52 


.56 


.74 


1.10 


1.65 


2.05 


3.80 


6.00 


6.70 


% 


.58 


.58 


.62 


.82 


1.20 


1.85 


2.25 


4.10 


6.50 


7.40 


1 






.70 


.90 


1.30 


2.05 


2.45 


4.40 


7.00 


8.50 


IH 






.80 


1.05 


1.45 


2.20 


2.65 


4.65 


7.50 


9.00 


1M 






.90 


1.20 


1.60 


2.35 


2.85 


4.90 


8.00 


9.90 


m 






1.10 


1.50 


1.90 


2.65 


3.25 


5.50 


9.00 


12.00 


m 








1.90 


2.30 


3.05 


3.75 


6.20 


10.00 


12.70 


2 








2.30 


2.70 


3.45 


4.25 


7.00 


11.00 


13.50 


2H 










3.10 


3.85 


4.75 


8.00 


12.00 


14.90 


m 












4.65 


5.80 


9.00 


13.50 


15.50 


2M 












6.00 


7.00 


10.00 


15.00 


17.00 


3 












7.50 


8.50 


11.00 


16.50 


19.00 



ku 



NOT CARRIED IN STOCK 

Made to Order in Quantity Only 



"^ 



A 



47 



Screw Machine 
& Special Work 



Table 



w 



THE CHICAGO NUT MANUFACTURING CQ 



"^ 















^_ 



48 



J\ 



<p^ 



THE CHICAGO NUT MANUFACTURING CO. 




Screw Machine 
& Special Work 



Tables 



y 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 




£=» 




c^. 




50 



Q 



m 



C 




_^ 



s^ 



y 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 




^_ 



J\ 



51 



Tables 



, 



y 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 








fe 





\jf 






kv 



A 



52 



V 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 







^5 « 












&_ 



.^ 



53 



Tables 



w 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 




;fg£ 




i 






^_ 



A 



54 



w 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



Tables 






^ 



A 



Tables 



I 



w 



^ 



THE CHICAGO NUT MANUFACTURING CO. 



~^ 



A.S.M.E. 
Standard Proportions 
For Machine Screws 









—82°-- 












-**- 












TT" 


s^\ 


HsTTTT" 




ly 


v 


L 


L 


J_— 


X:l. 






-B- 


A-* 


i 

M 

1 
1 


\ m 

! — 
i 

* 


-B-| 

4* 


I 

H 

i 




i 


^Jfm 






^^ 




No. 


FLAT HEAD 


ROUND HEAD 




A 


B 


c 


D 


E 


A 


B 


c 


D 


E 


2 


086 


.164 


.045 


.030 


.015 


.086 


.154 


.060 


.030 


.040 


3 


099 


.190 


.052 


.032 


.017 


.099 


.178 


.069 


.032 


.044 


4 


112 


.216 


.060 


.034 


.020 


.112 


,202 


.078 


.034 


.049 


5 


125 


.242 


.067 


.037 


.022 


.125 


.226 


.087 


. 037 


.053 


6 


138 


.268 


.075 


.039 


.025 


.138 


.250 


.097 


.039 


.058 


8 


164 


.320 


.090 


.043 


.030 


.164 


.298 


.115 


.043 


.067 


10 


190 


.372 


.105 


.048 


.035 


.190 


.346 


.133 


.048 


.076 


12 


216 


.424 


.120 


.052 


.040 


.216 


.394 


.151 


.052 


.085 


% 


250 


.492 


.139 


.058 


.046 


.250 


.458 


.175 


.058 


.098 


% •: 


5125 


.617 


.175 


.069 


.058 


.3125 


.573 


.219 


.069 


.119 


% 


375 


.742 


.211 


.080 


.070 


.375 


.689 


.263 


.080 


.141 




Formula 


Formula 


A = 


Diameter of body. 


A = Diameter of body. 


B = 


2A— .008 = Diameter of head. 


B =1.85 A—. 005 - Diameter of head. 


C = 


A— .008 

= Thickness of head. 


C = .7A = Height of head. 


D = 


-173A+.015 = Width of slot. 


D = .173A+.015 =Width of slot. 


E = 


HC = 


D 


epth 


of si 


at 






E = ^C 


:+.oi = 


Dep 


t.h 


of slot. 





ku 



A 



56 



T 



!F^ 



THE CHICAGO NUT MANUFACTURING CO. 



~ u ^ 



A.S.M.E. 
Standard Proportions 
For Machine Screws 



■Vr- 
1 ' i 



I 
I 

rtB 



■A- 



<^Z& 



c 



— «Dl- 



-r- 

E 



1 

1 

1 


i 

n 5 




^-* 




....{ 


J / 




7 


1 

1 
t 


-B- 




1 




1 

A- 


1 



: t-T 

.II 



No. 


FLAT FILLISTER HEAD 


OVAL FILLISTER HEAD 




A 


B 


C 


D 


E 


A 


B 


C 


D 


E 


F 


2 


.086 


.132 


.055 


.030 


.027 


.086 


.132 


.055 


.030 


.036 


.073 


3 


.099 


.153 


.063 


.032 


.032 


.099 


.153 


.063 


.032 


.042 


.084 


4 


.112 


.175 


.072 


.034 


.036 


.112 


.175 


.072 


.034 


,048 


.095 


5 


.125 


.196 


.081 


.037 


.040 


.125 


.196 


.081 


.037 


.053 


.107 


6 


.138 


.217 


.089 


.039 


.044 


.138 


.217 


.089 


.039 


.059 


.118 


8 


.164 


.260 


.106 


.043 


.053 


.164 


.260 


.106 


.043 


.071 


.141 


10 


.190 


.303 


.123 


.048 


.062 


.190 


.303 


.123 


.048 


.082 


.164 


12 


.216 


.345 


.141 


.052 


.070 


.216 


.345 


.141 


.052 


.093 


.187 


H 


.250 


.401 


.163 


.058 


.082 


.250 


.401 


.163 


.058 


.109 


.217 


% 


.3125 


.504 


.204 


.069 


.102 


.3125 


.504 


.204 


.069 


.136 


.272 


M 


.375 


.606 


.246 


.080 


.123 


.375 


.606 


.246 


.080 


.164 


.327 


Formula 






Formula 




A = diameter of body. 






A = diameter of body. 




B = 1.64A— .009 = diameter 


of hea 


d. 


B = 1.64A— .009=diam. of heat 
radius of oval. 


I and 


C = .66A— .002 - height of 


head. 




C = .66A— .002 =height of side. 




D = .173A+.015 - width of 


slot. 




D -.173A+.015 - width of slot. 




E = 3^C = depth of slot. 






E = ]/ 2 ¥ = depth of slot. 

F = . 134B +C = height of head. 





&_ 



A 



57 



^~ 



&^ 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



Table for Machine Screw Dimensions 



(Acceding to A.S.M.E. Formula) 



SCREW 


OUTSIDE 


DIAMETER 


PITCH DIAMETER 


SIZE 


Maximum 


Minimum 


Maximum 


Minimum 


2-56 


.086 


.0825 


. 0744 


.0727 


3-48 


.099 


. 0952 


.0855 


.0836 


4^36 


.112 


.1076 


.0940 


.0918 


4-32 


.112 


.1073 


.0917 


.0894 


5-40 


.125 


. 1208 


.1088 


.1067 


5-32 


.125 


.1203 


.1047 


.1024 


6-40 


.138 


. 1338 


. 1218 


.1197 


6-36 


.138 


.1336 


.1200 


.1178 


6-32 


.138 


.1333 


.1177 


.1154 


8-36 


.164 


.1596 


. 1460 


.1438 


8-32 


.164 


.1593 


.1437 
. 1424 


.1414 


8-30 


.164 


. 1592 


.1400 


10-32 


.190 


.1853 


.1697 
.1684 


. 1674 


10-30 


.190 


.1852 


.1660 


10-28 


.190 


.1851 


.1668 


.1644 


10-24 


.190 


.1848 


.1629 


.1603 


12-28 


.216 


.2111 


.1928 


.1904 


12-24 


.216 


.2108 


.1889 
.2149 


.1863 


14-24 


.242 


.2368 


.2123 


14-20 


.242 


.2364 


.2095 


.2067 


16-22 


.268 


.2626 


.2385 


. 2358 


16-20 


.268 


.2624 


.2355 


.2327 


16-18 


.268 


.2622 


.2319 


.2290 


16-16 


.268 


.2620 


.2274 


. 2244 


18-20 


.294 


.2884 


.2615 


.2587 


18-18 


.294 


.2882 


.2579 


.2550 


18-16 


.294 


.2880 


.2534 


.2504 


20-20 


.320 


.3144 


.2875 


.2847 


20-18 


.320 


.3142 


.2839 
.2794 


.2810 


20-16 


.320 


.3140 


.2764 


24-18 


.372 


.3662 


.3359 


.3330 


24-16 


.372 


.3660 


.3314 
.4036 


.3284 


30-14 


.450 


.4438 


.4005 



ku 



J} 



58 



w 



<F^ 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



Table of Tap Dimensions 

(According to A.S.M.E. Formula) 





OUTSIDE DIAMETER 


PITCH DIAMETER 


TAP SIZE 












Maximum 


Minimum 


Maximum 


Minimum 


2-56 


.0903 


.0872 


.0767 


,0756 


3-48 


.1038 


.1003 


.0880 


.0868 


4-36 


.1179 


.1135 


.0969 


.0955 


4-32 


.1185 


.1136 


.0948 


.0933 


5-40 


.1305 


.1264 


.1116 


.1102 


5-32 


.1315 


.1266 


.1078 


.1063 


6-40 


. 1435 


.1394 


.1246 


.1232 


6-36 


.1439 


.1395 


.1229 


.1215 


6-32 


.1445 


.1396 


. 1208 
.1489 


.1193 


8-36 


.1699 


.1655 


.1475 


8-32 


.1705 


.1656 


. 1468 


.1453 


8-30 


.1708 


.1656 


.1456 


. 1440 


10-32 


.1965 


.1916 
.1916 


.1728 
.1716 


.1713 


10-30 


.1968 


.1700 


10-28 


.1972 


.1916 


.1701 


,1684 


10-24 


.1980 


.1918 


.1664 
.1961 


.1647 


12-28 


. 2232 


.2176 


.1944 


12-24 


. 2240 


.2178 


. 1924 
.2184 


.1907 


14-24 


.2500 


.2438 


.2167 


14-20 


.2511 


.2439 


.2132 

.2421 


.2114 


16-22 


.2765 


.2698 


.2403 


16-20 


.2771 


.2699 


.2392 


.2374 


16-18 


.2779 


.2699 


.2358 


.2338 


16-16 


.2788 


.2700 


.2314 


.2294 


18-20 


.3031 


.2959 


.2652 


.2634 


18-18 


.3039 


.2959 


.2618 


.2598 


18-16 


.3048 


.2960 


.2574 


.2554 


20-20 


3291 


.3219 


.2912 


.2894 


20-18 


3299 


.3219 


.2878 
.2834 


.2858 


20-16 


.3308 


.3220 


.2814 


24-18 


3819 


.3739 


.3398 


.3378 


24-16 


. 3828 


.3740 


.3354 
.4078 


.3334 


30-14 


1619 


.4521 


.4057 



B.-L. 



J\ 



59 



EP^ 



T 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 




U. S. Standard Thread 



FORMULA: 

p = pitch 



No. threads per inch 
d = depth = p x .6495 

p 
f = flat = 



Diameter ... J£ y m y 8 % y 2 % % % % 

No. Threads per in 20 18 16 14 13 12 11 10 9 

Diameter 1 1*4 1H W 1H M W VA 2 

JNo. Threads per in. 8 7 7 6 6 5% 5 5 4K 

Diameter 2% 2% 2% 2 l A 2% 2% *V% 3 W% 

No. Threads per in 4J^ 4> l / 2 4 4 4 4 3 J/£ 3 J/£ 3 j| 

Diameter . . 3J£ 3^ 3^ 3^ 3M 3^ 4 

No. Threads per in Zy 2 3M 3M %X 3 3 3 



U,~p~ *, 




Sharp V Thread 



FORMULA: 

p = pitch = ■ 



No. threads per inch 
d = depth = p x .8660 

Diameter A % % % y 2 %, % \y m % i% 

No. Threads per in 20 18 16 14 12 12 11 11 10 10 

Diameter .....% % 1 IX IK 1H IH Hi \% W% 

No. Threads per in 9 9 8 7 7 6 6 5 5 4 J^ 

Diameter 2 2H 2% 2% 2}4 2% 2% 2% 3 $y 8 

No. Threads per in *H 4H *H 4}i 4 4 4 4 3J/£ 3^ 

Diameter 334 3^ 33^ 3^ Z% $% 4 

No. Threads per in 3*A $A %A $X 3 3 3 



&L. 



' n | Whitworth Standard 

-4- Ju ss~Jk Thread 

Z3 \- fix /TV FORMULA: 

/ \ / 0\ . u i 

^r I >*/ — J — ^-4 No. threads per inch 

I 1 d = depth = p x .64033 

r = radius m p x .1373 

D^ter ... % % % y 6 y 2 % 5 A 11^ % A i % 

No. Threads per in 20 18 16 14 12 12 11 11 10 10 

Diameter , ^ 15 /f 6 1 IH \A 1% V/ 2 \% 1% 1% 

No. Threads per in 9 9 8 7 7 6 6 5 5 4)4 

Diameter 2 2H 2A *H 2M 2% 2% 2% 3 3^ 

No. Threads per in. ty 2 kY 2 4 4 4 4 zy 2 $y 2 %y 2 %y 2 

Diameter 3^ W% Wi W% $% *H 4 

No. Threads per in 3j| 3 A %A $A 3 3 3 



-i£ 



60 



w 



THE CHICAGO NUT MANUFACTURING CO. 



-^ 



Society of Automobile Engineers 

S.A.E. (formerly A.L.A.M.) Standard Thread 



Form of Thread 
U. S. Standard 



FORMULA: 

p = pitch = 
d = depth 
f = flat = 



1 



No, threads per inch 
■ p x .64952 
P 



8 




Diameter U V % % % 

No. Threads per in 28 24 24 20 20 18 18 16 16 14 14 



American Society of Mechanical Engineers 

A.S.M.E. Standard Thread 

Form of Thread 
FORMULA: U. S. Standard 

1 I i 

p = pitch = ^..p.-J 

No. threads per inch _F*J \- - - ' 

d = depth = p x .64952 j\('''^ ^*A\ 

f = flat = _f_ J\ \$g b\ 

Size of Screw Gauge 1 2 3 4 5 6 7 8 9 10 12 14 16 

No. Threads per in 80 72 64 56 48 44 40 36 36 32 30 28 24 22 

Size of Screw Gauge 18 20 22 24 26 28 30 

No. Threads per in 20 20 18 16 16 14 14 

British Association Standard Thread 

FORMULA: i r\ ; 

P - pitch I ^ | 

d = depth = p x .6 -£ ^A, - »/ /fV 

r = radius = t Jj \*jf— . _^>| 

Number... 12 3 4 5 6 

Diameter, m/m 6.0 5.3 4,7 4.1 3.64 3.2 2.8 

Pitch (p),m/m 1.00 0.90 0.81 0.73 0.66 0.59 0.53 

Number 7 8 9 10 12 14 19 

Diameter, m/m 2.5 2.2 1.9 1.7 1.3 1.0 .79 

Pitch (p), m/m 0.48 0.43 0.39 0.35 0.28 0.23 19 



L. 



ja 



61 



United States Standard Form Thread 

Including S. A. E. Standard 




Formula < 



p = pitch = 

No. threads per inch 
d= depth =pX- 61952 



1 Basic Thread Dimensions and Drill Sizes 





Threads per Inch 


Outside 


Pitch 


Root 


2Tap 


Inches 


U. S. 


S. A. E. 


u. s. 


Diameter 


Diameter 


Diameter 


Drill 




Std. 


Std. 


Form 


Inches 


Inches 


Inches 


Size 


l 4 






60 


.0625 


.0517 


. 0409 


56 


He 


64 








.0625 


.0524 


.0422 


56 


He 








72 


.0625 


.0535 


.0445 


55 


% 








56 


.0781 


. 0665 


.0549 


Ni 


% 


60 








.0781 


.0673 


. 0565 


Vi fi 


*Z 








48 


. 0938 


.0803 


. 0667 


49 


% 


50 








.0938 


. 0808 


.0678 


49 


% 








56 


, 0938 


.0821 


.0706 


48 


% 








60 


. 0938 


. 0829 


.0721 


47 


% 


48 








.1094 


. 0959 


.0823 


43 


Hi 








32 


. 1250 


.1047 


.0844 


41 


H 








36 


.1250 


.1070 


.0889 


40 


l A 


40 








.1250 


.1088 


.0925 


38 


H 








48 


.1250 


.1115 


.0979 


37 


% 








32 


. 1406 


.1203 


.1000 


34 


% 








36 


. 1406 


.1226 


. 1045 


33 


% 


40 








. 1406 


. 1244 


.1081 


32 


*£ 


.' . 




32 


.1563 


. 1360 


.1157 


H 


% 


36 






. 1563 


.1382 


.1202 


30 


% 








40 


.1563 


. 1400 


. 1238 


30 


'¥4 


32 








.1719 


.1505 


.1313 


% 


«« 








36 


.1719 


.1538 


. 1358 


27 


He 


24 








.1875 


.1604 


. 1334 


26 


He 








30 


.1875 


.1658 


. 1442 


% 


He 








32 


.1875 


.1672 


. 1469 


22 


He 








36 


.1875 


.1695 


.1514 


20 


»& 


21 








.2031 


.1760 


.1490 


20 



(List continued on following page) 

!Taps are made slightly larger than basic sizes. 

2 Commercial Tap Drill to produce approximately 75% full thread. 



^_ 



M 



62 



United States Standard Form Thread 

Including S. A. E. Standard 

(Continued) 

1 Basic Thread Dimensions and Tap Drill Sizes 





Threads per Inch 


| Y;, . 














U.S. 


S. A. E. 


U.S. 




Std. 


Std. 


Form 


'% 






32 


%2 


24 






% 






28 


% 






32 


'% 


24 






n 4x 






28 


'% 






32 


X 


20 






H 






24 


H 




28 




H 






32 


%, 


18 






He 






20 


$2 




24 




« 






32 


Vs 


16 






Vs 






18 


Vs 






20 


Vs 




24 




He 


14 






He 




20 




% 






24 


HS 






12 


^ 


13 






^ 




20 




Vi 






24 


% 


12 






% 




18 




N 


11 






N 






12 


% 




18 




'He 


11 






■He 






12 


% 




16 




Ji 


10 






Ya. 






12 


H 




16 





Outside 

Diameter 

Inches 



.2031 
.2188 
.2188 
.2188 
.2344 
.2344 
.2344 
.2500 
.2500 
.2500 
.2500 
.3125 
.3125 
.3125 
.3125 
.3750 
.3750 
. 3750 
.3750 
.4375 
.4375 
.4375 
.5000 
.5000 
.5000 
. 5000 
.5625 
. 5625 
.6250 
.6250 
. 6250 
.6875 
.6875 
.6875 
.7500 
.7500 
.7500 



Pitch 


Root 


Diameter 


Diameter 


Inches 


Inches 


.1828 


.1625 


.1916 


.1646 


. 1956 


.1724 


.1985 


.1782 


. 2073 


.1806 


.2112 


.1880 


.2141 


.1942 


.2176 


.1850 


. 2229 


.1959 


.2268 


.2036 


.2297 


.2094 


.2764 


.2403 


.2800 


.2476 


.2854 


.2584 


.2922 


.2719 


.3344 


.2938 


. 3389 


.3029 


.3425 


.3100 


.3479 


.3209 


.3911 


.3447 


.4050 


.3726 


. 4104 


.3834 


.4459 


.3918 


.4501 


.4001 


.4675 


.4351 


.4729 


.4459 


.5084 


.4542 


.5264 


.4903 


.5660 


.5069 


.5709 


.5168 


. 5889 


.5528 


.6285 


.5694 


.6334 


.5793 


.6469 


.6063 


.6851 


.6201 


.6959 


.6418 


.7094 


.6688 



2 Tap 
Drill 
Size 



17 
16 
13 

% 
10 
8 
6 
7 
4 
3 
2 
F 

*% 

% 



p 

2 V M 
x 
% 

2 Vu 

% 

% 

»% 



% 



(List concluded on following page) 



^_ 



! Taps are made slightly larger than basic sizes. 

2 Commercial Tap Drill to produce approximately 75^ 



full thread. 



^ 



63 



United States Standard Form Thread 

Including S. A. E. Standard 

(Concluded) 



1 Basic Thread Dimensions and Tap Drill Sizes 





Threads per Inch 










Diameter 




Outside 


Pitch 


Root 


2 Tap 








Diameter 


Diameter 


Diameter 


Drill 




U.S. 


S. A. E. 


U.S. 


Inches 


Inches 


Inches 


Size 




Std. 


Std. 


Form 










% 


10 






.8125 


.7476 


.6826 


n Ai 


ni 






12 


.8125 


.7584 


.7043 


4 % 


% 


9 






.8750 


.8029 


.7307 


4 % 


Vs 






12 


.8750 


.8209 


.7668 


nS 


U 




ii 




.8750 


.8286 


.7822 


»% 


Vs 




18 




.8750 


.8389 


.8028 


% 


1*6 


9 






.9375 


. 8654 


.7932 


h% 4\ 


I5 /16 






12 


.9375 


.8834 


.8293 


6 % 


1 


8 






1.0000 


.9188 


.8376 


X 


1 






12 


1 . 0000 


.9459 


.8918 


5 % 


1 




14 




1 . 0000 


.9536 


.9072 


*Si 


1% 


8 






1 . 0625 


.9813 


.9001 


>*s 


IX 


7 






1.1250 


1.0322 


.9394 


<% 


IX 




12 




1.1250 


1.0709 


1.0168 


1% 


We 


7 






1.1875 


1.0947 


1.0019 


1% 


IX 


7 






1.2500 


1.1572 


1 . 0644 


1% 


IX 




12 




1.2500 


1.1959 


1.1418 


1'% 


1% 


7 






1.3125 


1.2197 


1.1269 


1% 


IX 


6 






1 . 3750 


1.2668 


1.1585 


1% 


IX 




12 




1.3750 


1.3209 


1.2668 


1'% 


1% 


6 






1 . 4375 


1.3293 


1.2210 


m 


IX 


6 






1.5000 


1.3918 


1 . 2835 


i% 


IX 




12 




1.5000 


1.4459 


1.3918 


i 2 % 


IX 


5^ 






1.6250 


1 . 5070 


1.3888 


i 2 % 


Wa. 


5 






1.7500 


1.6201 


1.4902 


1% 


1% 


5 






1.8750 


1.7451 


1.6152 


l»Hi 


2 


m 






2.0000 


1.8557 


1.7113 


1H6 


2% 


4M 






2.1250 


1.9807 


1.8363 


1% 


2M 


4H 






2.2500 


2.1057 


1.9613 


2% 


2H 


4 






2.3750 


2.2126 


2.0502 


2% 


2V 2 


4 






2.5000 


2.3376 


2.1752 


2X 


2% 


4 






2.7500 


2.5876 


2.4252 


2V 2 


3 


3^ 






3.0000 


2.8145 


2.6288 


2% 


3H 


3H 






3.2500 


3.0645 


2.8788 


2% 


Wi 


9H 






3.5000 


3 . 3002 


3.1003 


3'% 


3% 


3 






3.7500 


3.5335 


3.3170 


3 2 % 


4 


3 






4.0000 


3 . 7835 


3.5670 


3% 



Ik 



1 Taps are made slightly larger than basic sizes. 

2 Commercial Tap Drill to produce approximately 75% full thread. 



J\ 



64 



y 



h^ 



THE CHICAGO NUT MANUFACTURING CO. 



Drill 



.1 mm 
. 15mm 
.2mm 
. 25mm 
.3 mm 
80 

79V 2 
. 35mm 
79 

78^ 
78 

l 4i 

A mm 

77 
. 45mm 

76 
.5 mm 

75 

74^ 
.55mm 

74 

73^ 

73 
.6 mm 

72 

nH 

. 65mm 

71 

70 
.7 mm 

69V 2 

69 

68^ 
. 75mm - 

68 

67 

i 

.8 mm 
66 



Drill Size Decimal Equivalents 



Equivalent 



. 003937 
. 005905 
. 007874 
. 009842 
.011811 
. 013000 
.013500 
-. 013779 
. 014000 
t. 014500 
.015000 
. 015625 
015748 
.016000 
.017716 
018000 
. 019685 
/ . 020000 
.021000 
/ .021653 
. 022000 
022500 
. 023000 
/. 023622 
. 024000 
' .025000 
/ . 025590 
.026000 
.027000 
/ .027559 
.028000 
[,. 029000 
.029250 
. 029527 
.030000 
.031000 
/ .031250 
.031496 
.032000 



Drill 



65 
. 85mm 

64 
.9mm 

63 

62 
.95mm 

61 

my 2 

1. mm 

60 

59 
1 . 05mm 

58 

57 
1. 1 mm 
1 . 15mm 

56 



1.2 mm 
1 . 25mm 

1 .3 mm 
55 

1 . 35mm 
54 

1.4 mm 
1 . 45mm 
15 mm 

53 
1 . 55mm 

1.6 mm 
52 

1 . 65mm 

1.7 mm 
51 

1 . 75mm 
50 

1.8 mm 



ke 



Equivalent 



.033000 
.033464 
. 035000 
. 035433 
.036000 
. 037000 
' .037401 
. 038000 
. 039000 
. 039370 
. 040000 
.041000 
.041338 
.042000 
. 043000 
.043307 
. 045275 
. 046500 
. 046875 
. 047244 
.049212 
.051181 
. 052000 
.053149 
.055000 
.055118 
.057086 
. 059055 
.059500 
.061023 
. 062500 
. 062992 
. 063500 
. 064960 
. 066929 
. 067000 
. 068897 
. 070000 
. 070866 



Drill 



1 . 85mm 

49 
1.9 mm 

48 
1.95mm 



47 
2. mm 
2.05mm 

46 

45 

1 mm 
. 15mm 
44 

2 mm 
25mm 
43 

3 mm 
35mm 
42 



2.4 mm 
41 

2 . 45mm 
40 

2.5 mm 
39 

38 

2.6 mm 
37 

2.7 mm 
36 

2 . 75mm 

35 

2.8 mm 
34 

33 

2.9 mm 



Vu 



(List continued on following page) 



Equivalent 



. 072834 
. 073000 
.074803 
. 076000 
. 076771 
. 078125 
.078500 
. 078740 
.080708 
.081000 
. 082000 
.082677 
.084645 
.086000 
.086614 
. 088582 
.089000 
. 090551 
. 092519 
. 093500 
. 093750 
. 094488 
. 096000 
. 096456 
. 098000 
. 098425 
. 099500 
. 101500 
.102362 
. 104000 
.106299 
.106500 
. 108267 
.109375 
.110000 
.110236 
.111000 
.113000 
.111173 



"^ 



J\ 



65 



w 



THE CHICAGO NUT MANUFACTURING CO. 



** 



"^ 



Drill Size Decimal Equivalents 

(Continued) 



Drill 



3. 



3,1 



3. 

3. 



3.3 

3.4 

3.5 



3.6 
3.7 



32 
mm 
31 
mm 

Vs 
mm 
.25 mm 
30 
mm 
mm 
29 
mm 
28 

mm 

27 

mm 

26 
3,75 mm 

25 
3.8 mm 

24 

mm 

23 

22 
mm 

21 

20 

mm 

mm 

19 
4 . 25 mm 

4.3 mm 
18 

17 

4.4 mm 
16 



3.9 



4. 



4.1 

4.2 



Equivalent 



.116000 
.118110 
. 120000 
. 122047 
. 125000 
. 125984 
. 127952 
.128500 
. 129921 
.133858 
.136000 
.137795 
. 140500 
.140625 
. 141732 
.144000 
. 145669 
. 147000 
. 147637 
. 149500 
. 149606 
. 152000 
. 153543 
.154000 
. 156250 
.157000 
. 157480 
. 159000 
.161000 
.161417 
. 165354 
. 166000 
.167322 
. 169291 
. 169500 
.171875 
. 173000 
. 173228 
. 177000 



Drill 



4 . 5 mm 
15 

4.6 mm 
14 

13 

4.7 mm 
4 . 75 mm 

4.8 mm 
12 

11 

4.9 mm 
10 

9 

mm 
8 

mm 
7 

6 

mm 

5 

25 mm 

3 mm 

4 

mm 
3 

5 . 5 mm 

5.6 mm 
3 

5 . 7 mm 
5.75 mm 

1- 

5 . 8 mm 

5 . 9 mm 
A 

% 
6. mm 



r». 



5.1 



5.2 



5.4 



Equivalent 



177165 
. 180000 
.181102 
. 182000 
. 185000 
. 185039 
. 187007 
. 187500 
.188976 
. 189000 
.191000 
.192913 
.193500 
. 196000 
. 196850 
. 199000 
.200787 
.201000 
.203125 
.204000 
.204724 
.205500 
.206692 
.208661 
.209000 
.212598 
.213000 
.216535 
.218750 
.220472 
.221000 
.224409 
. 226377 
.228000 
.228346 
.232283 
.234000 
.234375 
.236220 



Drill 



B 

6.1 mm 
G 

6 . 2 mm 
D 

6 . 25 mm 

6 . 3 mm 

EM 

6.4 mm 

6.5 mm 
F 

6.6 mm 
G 

6.7 mm 

6.75 mm 
H 

6.8 mm 

6.9 mm 
I 

7. mm 
J 

7.1 mm 
K 

7 . 2 mm 
7 . 25 mm 

7 . 3 mm 
L 

7.4 mm 
M 

7 . 5 min 

7.6 mm 

N 

7 . 7 mm 
7 . 75 mm 

7.8 mm 

7 .9 mm 



Equivalent 



.238000 

.240157 

.242000 

.244094 

. 246000 

.246062 

.248031 

.250000 

.251968 

.255905 

.257000 

.259842 

.261000 

.263779 

.265625 

.265747 

.266000 

.267716 

.271653 

.272000 

.275590 

.277000 

.279527 

.281000 

.281250 

.283464 

.285432 

.287401 

.290000 

.291338 

.295000 

.295275 

.296875 

.299212 

.302000 

. 303149 

.305117 

.307086 

.311023 



ki_ 



(List continued on following page) 



66 



[ 


p^ 








U^gJ 




Tht CHIUAUU NUT MANUWNLTI 


JRING CO. 




t 






^ 


Drill Size Decimal Equivalents 








(Concluded) 




Drill 


Equivalent 


Drill 


Equivalent 


Drill 


Equivalent 


I* 


.312500 


10 mm 


.393700 


18 mm 


.708660 


8. mm 


.314960 


X 


.397000 


% 


.718750 





.316000 


Y 


.404000 


183^mm 


.728345 


8. 1 mm 


.318897 


% 


.406250 


4 % 


. 734375 


8.2 mm 


.322834 


Z 


.413000 


19 mm 


.748030 


P 


.323000 


lOj^mm 


.413385 


H 


.750000 


8.25mm 


. 324802 


2 % 


.421875 


4 % 


.765625 


8.3 mm 


.326771 


11 mm 


.433070 


193^mm 


.767715 


% 


.328125 


% 


.437500 


% 


.781250 


8.4 mm 


.330708 


llj^mm 


.452755 


20 mm 


.787400 


Q 


.332000 


2 % 


.453125 


51 ^ 


.796875 


8.5 mm 


.334645 


% 


.468750 


20J^mm 


.807085 


8.6 mm 


.338582 


12 mm 


.472440 


% 


.812500 


R 


.339000 


8 ¥4 


.484375 


21 mm 


.826770 


8.7 mm 


.342519 


123^mm 


.492125 


6 % 


.828125 


n 4i 


.343750 


H 


.500000 


% 


.843750 


8 . 75mm 


. 344487 


13 mm 


.511810 


21Hmm 


.846455 


8.8 mm 


.346456 


8 % 


.515625 


5 % 


.859375 


S 


.348000 


% 


.531250 


22 mm 


.866140 


8.9 mm 


.350393 


13^mm 


.531495 


Vs 


.875000 


9. mm 


. 354330 


3 % 


.546875 


223^mm 


. 885825 


T 


.358000 


14 mm 


.551180 


5 % 


.890625 


9.1 mm 


.358267 


% 


.562500 


23 mm 


.905510 


2 % 


. 359375 


14j^mm 


. 570865 


% 


.906250 


9.2 mm 


.362204 


3 % 


.578125 


5 % 


.921875 


9 . 25mm 


.364172 


15 mm 


. 590550 


233^mm 


.925195 


9.3 mm 


.366141 


] % 


. 593750 


% 


.937500 


U 


.368000 


3 %i 


.609375 


24 mm 


.944880 


9.4 mm 


. 370078 


15J^mm 


.610235 


*X, 


.953125 


9.5 mm 


.374015 


Yb 


.625000 


24}^mm 


.964565 


N 


.375000 


16 mm 


.629920 


»J6 


.968750 


V 


.377000 


4 Hi 


.640625 


25 mm 


.984250 


9.6 mm 


.377952 


16J^mm 


.649605 


6 % 


.984375 


9.7 mm 


.381889 


% 


.656250 


i 


1.000000 


9 . 75mm 


.383857 


17 mm 


.669290 






9.8 mm 


.385826 


4 % 


.671875 






W 


.386000 


»Ha 


.687500 






9.9 mm 


.389763 


17^mm 


.688975 






■* 


.390625 


4 % 


.703125 






L 








J\ 


I 



67 



y 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



U. S. Standard Threads, Bolts and Nuts 

The tap drill diameters in the table provide for a slight clearance at the root of the thread, 
in order to facilitate tapping and reduce tap breakages. If full threads are required, use the 
diameters at the root of the threads for the tap drill diameters. 





■ 

1 

5 
c 


1 

— u 

K, 

to 

ij 




go 

h 

OH 


Area in 
Square Inches 


Tensile Strength 
at Stress of 
6,000 Pounds 
per Square Inch 


Dimensions of Nuts 
and Bolt Heads 


S3 
i 

a 

s 


Of 

Bolt 


At 
Root 

of 
Thread 


1 


m 


r H 


I 




1 


3 


u 


20 


0.185 


*% 


0.049 


0.026 


160 


H 


0.578 


0.707 


H 


H 


% 


18 


0.240 


H 


0.076 


0.045 


270 


l % 


0.686 


0.840 


% 


19 4 


% 


16 


0.294 


Vk 


0.110 


0.068 


410 


ll A 


. 794 


0.972 


H 


n ^ 


% 


14 


0.345 


23 4 


0.150 


0.093 


560 


25 ^ 


. 902 


1.105 


% 


»A 


% 


13 


0.400 


27 4 


0.196 


0.126 


760 


H 


1.011 


1.237 


l A 


Vk 


% 


12 


0.454 


l %2 


. 248 


0.162 


1,000 


s % 


1.119 


1.370 


% 


*% 


H 


11 


0.507 


17 ^ 


0.307 


0.202 


1,210 


IH 


1.227 


1.502 


% 


17 ^ 


H 


10 


0.620 


Al 4i 


0.442 


. 302 


1,810 


IH 


1.444 


1.768 


H 


H 


% 


9 


0.731 


U 


0.601 


0.419 


2,520 


l 7 /fe 


1.660 


2.033 


% 


2 % 


1 


8 


0.838 


b5 m 


0.785 


0.551 


3,300 


IH 


1.877 


2.298 


l 


™A* 


IK 


7 


0.939 


3 ^2 


0,994 


. 694 


4,160 


\m 


2 . 093 


2.563 


IH 


2 % 


IM 


7 


1.064 


M* 


1.227 


0.893 


5,350 


2 


2.310 


2.828 


IK 


1 


m 


6 


1.158 


1 7 ^2 


1 . 485 


1.057 


6,340 


2*4 


2.527 


3.093 


i% 


1% 


IH 


6 


1.283 


l 11 ^ 


1.767 


1.295 


7,770 


2% 


2.743 


3.358 


m 


\ % /k 


i% 


5^ 


1.389 


l 37 4i 


2.074 


1.515 


9,090 


2% 


2.960 


3.623 


m 


1% 


IK 


5 


1.490 


l 17 ^ 


2.405 


1.746 


10,470 


2% 


3.176 


3.889 


IH 


IH 


1% 


5 


1.615 


1 21 ^2 


2.761 


2.051 


12,300 


V% 


3 . 393 


4.154 


m 


l"4 


2 


4y 2 


1.711 


1«4 


3.142 


2.302 


13,800 


3K 


3 . 609 


4.419 


2 


l^ie 


2M 


4y 2 


1.961 


2V6 


3.976 


3.023 


18,100 


3H 


4.043 


4.949 


2H 


IH 


2A 


4 


2.175 


2 15 64 


4 . 909 


3.719 


22,300 


3^ 


4.476 


5.479 


2A 


l l % 


2% 


4 


2.425 


2"^ 


5 . 940 


4.620 


27,700 


4M 


4.909 


6.010 


2% 


2% 


3 


3^ 


2.629 


2 i ir 6 


7.069 


5.428 


32,500 


4% 


5.342 


6.540 


3 


2% 


3M 


$a 


2.879 


2»4 


8.296 


6.510 


39,000 


5 


5.775 


7.070 


3K 


2A 


3^ 


3M 


3.100 


Wu 


9.621 


7.548 


45,300 


5Vs 


6.208 


7.600 


3M 


2>% 


m 


3 


3.317 


m 


1 1 . 045 


8 641 


51,800 


5% 


6.641 


8.131 


3M 


2H 


4 


3 


3.567 


3M 


12.566 


9.963 


59,700 


*x 


7.074 


8.661 


4 


81* 


*u 


2^ 


3.798 


3"^ 2 


14.186 


11.340 


68,000 


(> l A 


7.508 


9.191 


4K 


3M 


4y 2 


2% 


4.028 


4^2 


15.904 


12.750 


76,500 


6% 


7.941 


9 . 721 


4K 


3W 6 


4% 


2 5 A 


4.255 


4 5 /f 6 


17.721 


14.215 


85,500 


1% 


8.374 


10.252 


m 


*H 


5 


2V 2 


4.480 


4^6 


19 . 635 


15 . 760 


94,000 


1% 


8.807 


10 . 782 


5 


m* 


5M 


2V 2 


4.730 


4 13 /f 6 


21.648 


17.570 


105,500 


8 


9.240 


11.312 


5K 


4 


5^ 


2% 


4.953 


5!^ 


23.758 


19.260 


116,000 


sn 


9.673 


11.842 


5M 


«* 


5M 


2% 


5.203 


5 <J ^2 


25 . 967 


21.250 


127,000 


m 


10.106 


12.373 


5M 


*% 


6 


2}4 1 


5.423 


5 l A 


28.274 


23.090 


138,000 


9Vs 


10.539 


12 . 903 


6 


*% 



&!_ 



68 



w 



THE CHICAGO NUT MANUFACTURING CO. 



~^) 



Weight of Steel, Copper and Brass Wire 
Per 100 Feet 



Birmingham 


Diameter 


Steel, 


Copper, 


Brass, 


Gauge 


Inches 


Lbs. 


Lbs. 


Lbs. 


0000 


. 151 


55.14 


62.39 


59.45 


000 


.425 


48.32 


54.67 


52.00 


00 


.380 


38.63 


43.71 


41 . 55 





.340 


30.92 


34.99 


33.25 


1 


.300 


24.07 


27.24 


25.93 


2 


.284 


21.57 


24.41 


23.22 


3 


.259 


17.94 


20.30 


19.30 


4 


.238 


15.15 


17.15 


16.31 


5 


.220 


12.95 


14.65 


13.91 


6 


.203 


11.02 


12.47 


11.86 


7 


.180 


8.67 


9.81 


9.32 


8 


.165 


7.28 


8.24 


7.83 


9 


.148 


5.86 


6.63 


6.30 


10 


. 134 


4.80 


5.43 


5.16 


11 


.120 


3.85 


4.36 


4.15 


12 


.109 


3.18 


3,59 


3.42 


13 


.095 


2.414 


2.73 


2.60 


14 


.083 


1.842 


2.085 


1.980 


15 


.072 


1.386 


1.569 


1.491 


16 


.065 


1.130 


1.278 


1 . 214 


17 


.058 


. 899 


1.018 


.970 


18 


.049 


.642 


.726 


.691 


19 


.042 


.471 


.534 


.507 


20 


.035 


.327 


.37 


.352 


21 


.032 


.273 


.31 


.295 


22 


.028 


.209 


.237 


.225 


23 


.025 


.167 


.189 


.180 


21 


.022 


.129 


.146 


.139 


25 


.020 


.107 


.121 


.115 


26 


.018 


.086 


.098 


.093 


27 


.016 


.068 


.077 


.074 


28 


.014 


.0524 


.0594 


.0564 


29 


.013 


. 0452 


.0513 


.0486 


30 


.012 


.0385 


.0437 


.0415 


31 


.010 


.0267 


.0303 


.0288 


32 


.009 


.0217 


.0245 


.0233 


33 


.008 


.0171 


.0194 


.0184 


34 


.007 


.0131 


.0148 


.0141 


35 


.005 


.0067 


.0076 


.0072 


36 


.004 


. 0043 


.0048 


.0046 



To obtain the weight per 100 feet of other sizes, multiply the square of the 
diameter: 

For Steel by 267. For Copper by 303. For Brass by 288. 



^ 



-r2l 



69 



w 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



Weight of Round, Square and Hexagon 
Steel Bars Per Foot 

(One Cubic Foot of Steel Weighs 490 Lbs.) 



Diam, 


Round 


Hexagon 


Square 


Diam. 


Round 


Hexagon 


Square 


H 


.042 


.046 


.053 


% 


1.503 


1.660 


1.914 


Vn 


.065 


.072 


.082 


2 % 


1.630 


1.800 


2.075 


Vk 


.094 


.104 


.120 


% 


1.764 


1.948 


2.246 


% 


.128 


.142 


.163 


2 % 


1.901 


2.099 


2.420 


V* 


.167 


.184 


.212 


H 


2.044 


2.256 


2.603 


% 


.211 


.233 


.268 


2 %2 


2.193 


2.421 


2.791 


%, 


.261 


.288 


.332 


15 /f6 


2.349 


2.594 


2.990 


% 


.315 


.348 


.401 


% 


2.508 


2.769 


3.190 


H 


.375 


.414 


.478 


1 


2.671 


2.950 


3.400 


% 


.442 


.488 


.563 


1% 


3.015 


3.329 


3.839 


% 


.511 


.564 


.651 


IH 


3.380 


3.732 


4.305 


% 


.586 


.647 


.746 


m 


3.770 


4.166 


4.798 


H 


.667 


.737 


.850 


IH 


4.175 


4.610 


5.315 


% 


.754 


.833 


.960 


m 


,4.601 


5.080 


5.858 


% 


.845 


.933 


1.077 


m 


5.051 


5.579 


6.430 


% 


.941 


1.040 


1.199 


m 


5.520 


6.095 


7.027 


H 


1.043 


1.153 


1.328 


m 


6.011 


6.738 


7,651 


% 


1.151 


1.271 


1.465 


m 


7.053 


7.785 


8.979 


»Hi 


1.263 


1.395 


1.608 


m 


8.181 


9.043 


10.41 


% 


1.380 


1.524 


1.757 


2 


10.69 


11.81 


13.61 



For weight of brass rods multiply by 1.08 
For weight of copper rods multiply by 1.13 



^L. 



-A 



70 



T 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



Explanation of Wire Gauges 

BROWN & SHARPE gauge is used for sheet brass, bronze and German Silver ; 
brass, copper and German Silver wire, and brazed brass tubing. 



BIRMINGHAM gauge is used for steel bands and hoops, cold rolled strip 
steel, cold rolled sheet copper, and seamless brass, bronze, copper and steel tubing. 



WASHBURN & MOEN gauge is used for cold drawn steel wire. 



STUBS' STEEL WIRE gauge is used for drill rods. 



U. S. STANDARD gauge is used for hot rolled sheet steel, either plain, gal- 
vanized or tinned. Hot rolled copper sheets are made to a specified number of 
ounces per square foot. 



MUSIC WIRE gauge is used for steel music or piano wire. The table given is 
for the gauge used by the American Steel & Wire Co. Several other music wire 
gauges are in partial use, and differ slightly from the one given. 



ZINC GAUGE is used for sheet zinc and "nickeloid." 



L 



A 



71 



¥~ 



^ 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



Different Standards for Wire Gauge 

IN USE IN THE UNITED STATES 



Dimensions of Sizes in Decimal Parts of an Inch 







Bir- 


| 






Music 




No. of 


Brown 


mingham, 


Washburn 


Stubs' 


u. s. 


Wire 




Wire 


& 


or Stubs' 


& Moen 


Steel 


Standard 


(A. S. & 


Zinc 


Gauge 


Sharpe 


Iron Wire 




Wire 


for Plate 


W. Co.) 


Gauge 


000000 


.58000 




.4615 




. 46875 


.004 




00000 


.51650 


.500 


,4305 




.4375 


.005 






0000 


.46000 


.454 


( .3938 




. 40625 


.006 






000 


.40964 


.425 


.3625 




.375 


.007 






00 


.36480 


.38 


.3310 




. 34375 


.008 









.32486 


.34 


.3065 




.3125 


.009 






1 


.28930 


.3 


.2830 


.227 


.28125 


.010 






2 


.25763 


.284 


.2625 


.219 


.265625 


.011 






3 


.22942 


.259 


.2437 


.212 


.25 


.012 




006 


4 


.20431 


.238 


.2253 


.207 


.234375 


.013 




008 


5 


. 18194 


.22 


.2070 


.204 


.21875 


.014 




010 


6 


.16202 


.203 


.1920 


.201 


.203125 


.016 




012 


7 


. 14428 


.18 


,1770 


.199 


.1875 


.018 




014 


8 


. 12849 


.165 


.1620 


.197 


.171875 


.020 




016 


9 


.11443 


.148 


.1483 


.194 


. 15625 


.022 




018 


10 


.10189 


.134 


. 1350 


.191 


. 140625 


.024 




020 


11 


.090742 


.12 


. 1205 


.188 


.125 


.026 




024 


12 


. 080808 


.109 


. 1055 


.185 


.109375 


.029 




028 


13 


.071961 


.095 


.0915 


.182 


. 09375 


.031 




032 


14 


.064084 


.083 


.0800 


.180 


. 078125 


.033 




036 


15 


.057068 


.072 


.0720 


.178 


. 0703125 


. 035 




040 


16 


.050820 


.065 


.0625 


.175 


. 0625 


.037 




045 


17 


.045257 


.058 


.0540 


.172 


. 05625 


.039 




050 


18 


. 040303 


.049 


.0475 


.168 


.05 


,041 




055 


19 


. 035890 


.042 


.0410 


.164 


. 04375 


.043 




060 


20 


.031961 


,035 


.0348 


.161 


.0375 


.045 




070 


21 


. 028462 


.032 


.03175 


.157 


. 034375 


.047 




080 


22 


.025347 


.028 


.0286 


.155 


.03125 


.049 




090 


23 


.022571 


.025 


.0258 


.153 


.028125 


.051 




100 


24 


.020100 


.022 


.0230 


.151 


.025 


.055 




125 


25 


.017900 


.02 


.0204 


.148 


. 021875 


.059 






26 


.015940 


.018 


. 0181 


.146 


.01875 


.063 






27 


.014195 


.016 


.0173 


.143 


.0171875 


.067 






28 


.012641 


.014 


.0162 


.139 


.015625 


.071 






29 


.011257 


.013 


.0150 


.134 


0140625 


.075 






30 


. 010025 


.012 


.0140 


.127 


.0125 


.080 






31 


.008928 


.01 


.0132 


.120 


.0109375 


.085 






32 


. 007950 


.009 


.0128 


.115 


.01015625 


.090 






33 


.007080 


.008 


.0118 


.112 


. 009375 


.095 






34 


.006304 


.007 


.0104 


.110 


.00859375 


.098 






35 


. 005614 


.005 


. 0095 


.108 


. 0078125 








36 


. 005000 


.004 


.0090 


.106 


.00703125 








37 


. 004453 




. 0085 


.103 


. 006640625 








38 


. 003965 




.0080 


.101 


. 00625 








39 


.003531 
.003144 




.0075 
.0070 


.099 
.097 










40 







&!_ 



J\ 



72 











qj 




THE 


, ^m^AUU NU I MANUrAUlUMINU (JU. 


^_ 


^ 




SSI 


Circumferences and Areas of Circles 




Circum- 






Circum- 






Circum- 




Diam. 


ference 


Area 


Diam 


ference 


Area 


Diam 


ference 


Area 


l A 


0.1961 


0.0031 


13K 


42.4115 


143.14 


52 


163.363 


2123.7 


H 


0.3927 


0.0123 


14 


43.9823 


153.94 


53 


166.504 


2206.2 


% 


0.5890 


0.0276 


H 


45.5331 


165.13 


54 


169.646 


2290.2 


H 


0.7854 


0.0491 


15 


47 . 1239 


176.71 


55 


172 . 788 


2375.8 


% 


0.9817 


0.0767 


y 2 


48 . 6947 


188.69 


56 


175.929 


2463.0 


% 


1.1781 


0.1105 


16 


50.2655 


201.06 


57 


179.071 


2551.8 


V\s 


1 . 3745 


0.1503 


H 


51.8363 


213.82 


58 


182.212 


2642.1 


H 


1.5708 


0.1964 


17 


53.4071 


226.98 


59 


185.354 


2734.0 


% 


1.7672 


0.2485 


H 


54.9779 


240.53 


60 


188.496 


2827.4 


H 


1.9635 


0.3068 


18 


56.5487 


254.47 


61 


191.637 


2922.5 


% 


2.1598 


0.3712 


H 


58.1195 


268.80 


62 


194.779 


3019.1 


H 


2 . 3562 


0.4418 


19 


59.6903 


283.53 


63 


197.920 


3117.2 


% 


2.5525 


0.5185 


V2 


61.2611 


298.65 


64 


201 . 062 


3217.0 


% 


2.7489 


0.6013 


20 


62.8319 


314.16 


65 


204.204 


3318.3 


% 


2.9452 


0.6903 


Vi 


64.4026 


330.06 


66 


207.345 


3421.2 


I 


3.1436 


0.7854 


21 


65.9734 


346.36 


67 


210.487 


3525.7 


H 


3.5343 


. 99 1 


H 


67.5442 


363.05 


68 


213.628 


3631.7 


H 


3.9270 


1.2272 


22 


69.1150 


380.13 


69 


216.770 


3739.3 


% 


4.3197 


1.4819 


H 


70.6858 


397.61 


70 


219.911 


3848 . 5 


H 


4.7124 


1.7671 


23 


72.2566 


415.48 


71 


223.053 


3959.2 


% 


5.1051 


2.0739 


M 


73 . 8274 


433 . 74 


72 


226.195 


4071.5 


% 


5.4978 


2.4053 


24 


75.3982 


452.39 


73 


229.336 


4185.4 


Vs 


5.8905 


2.7612 


H 


76.9690 


471.44 


74 


232.478 


4300 . 8 


2 


6.2832 


3.1416 


25 


78.5398 


490.87 


75 


235.619 


4417.9 


H 


7.0686 


3.9761 


26 


81.6814 


530.93 


76 


238.761 


4536.5 


H 


7.8540 


4.9087 


27 


84.8230 


572.56 


77 


241 . 903 


4656.6 


% 


8.6394 


5 9396 


28 


87.9646 


615.75 


78 


245 . 044 


4778.4 


3 


9.4248 


7 . 0686 


29 


91 . 1062 


660 . 52 


79 


248.186 


4901.7 


H 


10.2102 


8.2958 


30 


94.2478 


706 . 86 


80 


251.327 


5026.5 


l A 


10.9956 


9.6211 


31 


97 . 3894 


754.77 


81 


254.469 


5153.0 


H 


11.7810 


11.045 


32 


100.531 


804.25 


82 


257.611 


5281.0 


4 


12.5664 


12.566 


33 


103 . 673 


855 . 30 


83 


260.752 


5410.6 


H 


14.1372 


15 . 904 


34 


106.814 


907.92 


84 


263 . 894 


5541.8 


5 


15.7080 


19.635 


35 


109.956 


962.11 


85 


267 . 035 


5674.5 


Vi 


17.2788 


23 . 758 


36 


113.097 


1017.9 


86 


270.177 


5808.8 


6 


18.8496 


28.274 


37 


116.239 


1075.2- 


87 


273.319 


5944.7 


H 


20.4204 


33.183 


38 


119.381 


1134.1 


88 


276.460 


6082.1 


i 


21.9911 


38.485 


39 


122.522 


1194.6 


89 


279.602 


6221 . 1 


H 


23.5619 


44.179 


40 


125.664 


1256.6 


90 


282.743 


6361.7 


8 


25.1327 


50.265 


41 


128.805 


1320.3 


91 


285.885 


6503.9 


H 


26.7035 


56.745 


42 


131.947 


1385.4 


92 


289.027 


6647.6 


9 


28.2743 


63.617 


43 


135 . 088 


1452.2 


93 


292 . 168 


6792 . 9 


H 


29.8451 


70.882 


44 


138.230 


1520.5 


94 


295.310 


6939.8 


10 


31.4159 


78.510 


45 


141 . 372 


1590.4 


95 


298.451 


7088.2 


H 


32.9867 


86.590 


46 


144.513 


1661.9 


96 


301.593 


7238.2 


n 


34.5575 


95 . 033 


47 


147.655 


1734.9 


97 


304.734 


7389.8 


H 


36.1283 


103.87 


48 


150.796 


1809.6 


98 


307 . 876 


7543.0 


12 


37.6991 


113.10 


49 


153.938 


1885.7 


99 


311.018 


7697.7 


h 


39.2699 


122.72 


50 


157.080 


1963.5 


100 


314.16 


7854.0 


13 


40.8407 


132.73 


51 


160.221 


2042.8 








k 




J\ 


■■ 1 — . — — 1 1 



73 




Distance Across Corners 
of Square and Hexagon 



''AT 


/ 


/ \ ', 


/ 


/ D >1 


/ 


v / 1 


s 



D=1.1547<f 
£-1.41424 



cZ 


D 


E 


d 


D 


E 


d 


D 


E 




0.2886 
0.3247 
0.3608 


0.3535 
0.3977 
0.4419 


i% 


1.4434 
1.4794 
1.5155 


1 . 7677 
1.8119 
1.8561 


2% 

2% 


2 . 6702 

2.7424 
2.8145 


3 . 2703 
3 . 3587 
3 . 4471 


% 


0.3968 
0.4329 
0.4690 


0.4861 
0.5303 
0.5745 


IHfa 

1% 


1.5516 
1.5877 
1.6238 


1.9003 
1 . 9445 
1.9887 


2H 
2% 
2% 


2.8867 
2.9589 
3.0311 


3.5355 

3.6239 
3.7123 




0.5051 
0.5412 
0.5773 


0.6187 
0.6629 
0.7071 


1% 
1% 

IK 


1.6598 
1.6959 
1.7320 


2.0329 
2.0771 
2.1213 


2% 

2% 


3.1032 
3.1754 
3.2476 


3.8007 
3.8891 
3.9794 


% 
% 

% 


0.6133 
0.6194 
0.6855 


0.7513 
0.7955 
0.8397 


l 17 ^2 
l 9 /f 6 
1% 


1.7681 
1.8012 
1.8403 


2.1655 

2.2097 
2 . 2539 


2% 
2% 
3 


3.3197 
3 . 3919 
3.4641 


4.0658 
4.1542 
4.2426 


H 

% 
% 


0.7216 
0.7576 
0.7937 


0.8839 
0.9281 
0.9723 


1% 

1% 
1% 


1.8764 
1.9124 
1.9485 


2.2981 
2.3423 
2.3865 


3% 
3% 


3.5362 
3.6084 
3.6806 


4.3310 
4.4194 
4.5078 


% 

M 

% 


0.8298 
0.8659 
0.9020 


1.0164 
1 . 0606 
1.1048 


1 2 % 
1% 

1% 


1.9846 
2.0207 
2.0568 


2.4306 
2.4708 
2.5190 


&A 


3.7527 
3 . 8249 
3.8971 


4.5962 
4.6846 
4.7729 


2 % 


0.9380 
0.9741 
1.0102 


1.1490 
1 . 1932 
1.2374 


1% 


2.0929 
2.1289 
2.1650 


2.5632 
2.6074 
2.6516 


3% 
3K 
3% 


3.9692 
4.0414 
4.1136 


4.8613 
4.9497 
5.0381 


2 % 


1.0463 
1 . 0824 
1.1184 


1.2816 
1 . 3258 
1.3700 


V%2 
1% 


2.2011 
2.2372 
2.2733 


2.6958 
2.7100 
2.7842 


3M 


4.1857 
4.2579 
4.3301 


5.1265 
5.2149 
5.3033 


1 

»2 


1.1547 
1.1907 
1.2268 


1.4142 
1.4584 
1.5026 


2 

m 


2.3094 
2.3453 
2.3815 


2.8284 
2.8726 
2.9168 


3% 

3^6 


4.4023 
4.4744 
4.5466 


5.3917 
5.4801 
5.5684 


m 


1.2629 
1 . 2990 
1.3351 


1 . 5468 
1.5910 
1 . 6352 


2¥ 2 
2%2 


2.4176 
2.4537 
2.4898 


2.9610 
3.0052 
3.0494 


4 

4H 


4.6188 
4.7631 
4.9047 


5 . 6568 
5 . 8336 
6.0104 




1.3712 
1.4073 


1.6793 
1.7235 


2% 


2.5259 
2.5981 


3.0936 
3.1820 




5.0518 
5.1961 


6.1872 
6.3639 



&_ 



A 



74 





l 














L-^J 




THE ChlLAUU NUl MANUWYL1UK1N 


G CO. 




1 








^ 


Squares, < 


Cubes, Square 


and Cube Roots 






of Numbers from 1 to 100 










Square 


Cube 








Square 


Cube 


No. 


Square 


Cube 


Root 


Root 


No. 


Square 


Cube 


Root 


Root 


1 


1 


1 


1 . 0000 


1 . 0000 


51 


2601 


132651 


7.1411 


3.7084 


2 


4 


8 


1.4142 


1.2599 


52 


2704 


140608 


7.2111 


3 . 7325 


3 


9 


27 


1.7321 


1.4422 


53 


2809 


148877 


7.2801 


3.7563 


4 


16 


64 


2 . 0000 


1 . 5874 


54 


2916 


157464 


7 . 3485 


3.7798 


5 


25 


125 


2.2361 


1.7100 


55 


3025 


166375 


7.4162 


3.8030 


6 


36 


216 


2.4495 


1.8171 


56 


3136 


175616 


7.4833 


3.8259 


7 


49 


343 


2.6458 


1.9129 


57 


3249 


185193 


7.5498 


3.8485 


8 


64 


512 


2.8284 


2.0000 


58 


3364 


195112 


7.6158 


3 . 8709 


9 


81 


729 


3 . 0000 


2.0801 


59 


3481 


205379 


7.6811 


3 . 8930 


10 


100 


1000 


3 . 1623 


2 . 1544 


60 


3600 


216000 


7.7460 


3.9149 


11 


121 


1331 


3.3166 


2.2240 


61 


3721 


226981 


7.8102 


3.9365 


12 


144 


1728 


3.4641 


2.2894 


62 


3844 


238328 


7 . 8740 


3.9579 


13 


169 


2197 


3.6056 


2.3513 


63 


3969 


250047 


7.9373 


3.9791 


14 


196 


2744 


3.7417 


2.4101 


64 


4096 


262144 


8.0000 


4.0000 


15 


225 


3375 


3.8730 


2.4662 


65 


4225 


274625 


8.0623 


4.0207 


16 


256 


4096 


4.0000 


2.5198 


66 


4356 


287496 


8 . 1240 


4.0412 


17 


289 


4913 


4.1231 


2.5713 


67 


4189 


300763 


8.1854 


4.0615 


18 


321 


5832 


4.2426 


2.6207 


68 


4624 


314432 


8.2462 


4.0817 


19 


361 


6859 


4 . 3589 


2.6684 


69 


4761 


328509 


8.3066 


4.1016 


20 


400 


8000 


4.4721 


2.7144 


70 


4900 


343000 


8.3666 


4.1213 


21 


441 


9261 


4.5826 


2.7589 


71 


5041 


357911 


8.4261 


4.1408 


22 


484 


10648 


4.6904 


2 . 8020 


72 


5184 


373248 


8.4853 


4.1602 


23 


529 


12167 


4.7958 


2 . 8439 


73 


5329 


389017 


8.5440 


4.1793 


24 


576 


13824 


4.8990 


2 . 8845 


74 


5476 


405224 


8.6023 


4.1983 


25 


625 


15625 


5 . 0000 


2.9240 


75 


5625 


421875 


8.6603 


4.2172 


26 


676 


17576 


5 . 0990 


2.9625 


76 


5776 


438976 


8.7178 


4.2358 


27 


729 


19683 


5 . 1962 


3 . 0000 


77 


5929 


456533 


8.7750 


4.2543 


28 


781 


21952 


5.2915 


3 . 0366 


78 


6084 


474552 


8.8318 


4.2727 


29 


841 


24389 


5.3852 


3.0723 


79 


6241 


493039 


8.8882 


4.2908 


30 


900 


27000 


5.4772 


3.1072 


80 


6400 


512000 


8.9443 


4.3089 


si 


961 


29791 


5 . 5678 


3.1414 


81 


6561 


531441 


9.0000 


4.3267 


32 


1024 


32768 


5.6569 


3 . 1748 


82 


6724 


551368 


90554 


4.3445 


33 


1089 


35937 


5 . 7446 


3 . 2075 


83 


6889 


571787 


9.1104 


4.3621 


31 


1156 


39301 


5.8310 


3.2396 


84 


7056 


592704 


9.1652 


4.3795 


35 


1225 


42875 


5.9161 


3.2711 


85 


7225 


614125 


9.2195 


4.3968 


36 


1296 


46656 


6.0000 


3.3019 


86 


7396 


636056 


9.2736 


4.4140 


37 


1369 


50653 


6.0828 


3 . 3322 


87 


7569 


658503 


9.3276 


4.4310 


38 


1444 


54872 


6.1614 


3.3620 


88 


7744 


681472 


9.3808 


4.4480 


39 


1521 


59319 


6.2450 


3.3912 


89 


7921 


704969 


9.4340 


4.4647 


40 


1600 


64000 


6.3246 


3.4200 


90 


8100 


729000 


9.4868 


4.1814 


41 


1681 


68921 


6.4031 


3.4482 


91 


8281 


753571 


9.5394 


4.4979 


42 


1764 


74088 


6.4807 


3.4760 


92 


8464 


778688 


95917 


4.5144 


13 


1819 


79507 


6.5574 


3.5034 


93 


8619 


804357 


9.6437 


4.5307 


44 


1936 


85184 


6.6332 


3 . 5303 


91 


8836 


830584 


9 . 6954 


4 . 5468 


45 


2025 


91125 


6.7082 


3 . 5569 


95 


9025 


857375 


9.7468 


4.5629 


46 


2116 


97336 


6.7823 


3 . 5830 


96 


9216 


884736 


9.7980 


4.5789 


47 


2209 


103823 


6.8557 


3 . 6088 


97 


9409 


912673 


9.8189 


4.5947 


48 


2304 


110592 


6.9282 


3.6342 


98 


9604 


941191 


9 . 8995 


4.6104 


49 


2401 


117649 


7 . 0000 


3.6593 


99 


9801 


970299 


9.9499 


4.6261 


I 50 


2500 


125000 


7.0711 


3.6840 


100 


10000 


1000000 


10.0000 


4.6416 


P^i 














*fi 





75 





W^ 












l- ^5 


J 




THE C 


HICAUU NU 1 MANUrAUIUKINU CU. 




f 


_Tj= — 


1 




Reci] 


procals of Numbers 








From 1 to 200 






No. 


Reciprocal 


No. 


Reciprocal 


No. 


Reciprocal 


No. 


Reciprocal 


1 


L . 00000000 


51 


.01960784 


101 


. 00990099 


151 


. 00662252 


2 


. 50000000 


52 


.01923077 


102 


. 00980392 


152 


.00657895 


3 


. 33333333 


53 


.01886792 


103 


. 00970874 


153 


.00653595 


4 


.25000000 


54 


.01851852 


104 


.00961538 


154 


.00649351 


5 


. 20000000 


55 


.01818182 


105 


.00952381 


155 


.00645161 


6 


. 16666667 


56 


.01785714 


106 


.00943396 


156 


.00641026 


7 


. 14285714 


57 


.01754386 


107 


.00934579 


157 


. 00636943 


8 


.12500000 


58 


.01724138 


108 


.00925926 


158 


.00632911 


9 


.11111111 


59 


.01694915 


109 


.00917431 


159 


.00628931 


10 


. 10000000 


60 


.01666667 


110 


.00909091 


160 


.00625000 


11 


.09090909 


61 


.01639344 


111 


. 00900901 


161 


.00621118 


12 


.08333333 


62 


. 01612903 


112 


. 00892857 


162 


.00617284 


13 


. 07692308 


63 


.01587302 


113 


. 00884956 


163 


.00613497 


14 


.07142857 


64 


.01562500 


in 


.00877193 


164 


.00609756 


15 


.06666667 


65 


.01538161 


115 


.00869565 


165 


.00606061 


16 


.06250000 


66 


.01515151 


116 


.00862069 


166 


.00602410 


17 


. 05882353 


67 


.01492537 


117 


.00854701 


167 


.00598802 


18 


. 05555556 


68 


.01470588 


118 


.00847458 


168 


.00595238 


19 


.05263158 


69 


. 01449275 


119 


.00840336 


169 


.00591716 


20 


.05000000 


70 


.01428571 


120 


. 00833333 


170 


.00588235 


21 


. 04761905 


71 


.01408451 


121 


. 00826446 


171 


. 00584795 


22 


. 04545455 


72 


.01388889 


122 


.00819672 


172 


.00581395 


23 


.04347826 


73 


.01369863 


123 


.00813008 


173 


. 00578035 


24 


.04166667 


74 


.01351351 


124 


.00806452 


174 


.00574713 


25 


. 04000000 


75 


.01333333 


125 


.00800000 


175 


.00571429 


26 


.03846154 


76 


.01315789 


126 


.00793651 


176 


.00568182 


27 


. 03703704 


77 


.01298701 


127 


.00787402 


177 


.00564972 


28 


.03571429 


78 


.01282051 


128 


.00781250 


178 


.00561798 


29 


. 03448276 


79 


.01265823 


129 


.00775194 


179 


.00558659 


30 


.03333333 


80 


.01250000 


130 


.00769231 


180 


.00555556 


31 


. 03225806 


81 


.01234568 


131 


. 00763359 


181 


. 00552486 


32 


.03125000 


82 


.01219512 


132 


.00757576 


182 


.00549451 


33 


.03030303 


83 


.01204819 


133 


.00751880 


183 


.00546448 


34 


.02941176 


84 


.01190476 


134 


.00746269 


184 


.00513478 


35 


.02857143 


85 


.01176471 


135 


. 00740741 


185 


.00540540 


36 


.02777778 


86 


.01162791 


136 


.00735294 


186 


.00537634 


37 


.02702703 


87 


.01149425 


137 


. 00729927 


187 


.00534759 


38 


.02631579 


88 


.01136364 


138 


.00724638 


188 


.00531914 


39 


.02564103 


89 


.01123595 


139 


.00719424 


189 


.00529100 


40 


.02500000 


90 


.01111111 


140 


.00714286 


190 


.00526316 


41 


. 02439024 


91 


.01098901 


141 


. 00709220 


191 


.00523560 


42 


. 02380952 


92 


.01086956 


142 


.00704225 


192 


. 00520833 


43 


.02325581 


93 


.01075269 


143 


.00699301 


193 


.00518135 


44 


.02272727 


94 


.01063830 


144 


. 00694444 


194 


.00515464 


45 


.02222222 


95 


.01052632 


145 


.00689655 


195 


.00512820 


46 


.02173913 


96 


.01041667 


146 


.00684931 


196 


.00510204 


47 


.02127660 


97 


.01030928 


147 


. 00680272 


197 


.00507614 


48 


. 02083333 


98 


.01020408 


148 


.00675676 


198 


.00505051 


49 


.02040816 


99 


.01010101 


149 


.00671141 


199 


.00502513 


50 


. 02000000 


100 


.01000000 


150 


. 00666667 


200 


. 00500000 


fc, 












A 


. 















76 





L^ L^ 






IHt U11CAUU I\U1 MANUFAUiUKlMJ 


(JU. 




T 






1 




Natural Tangents and Cotangents 


Q 


TANGENT 


89 


0' 


10' 


20' 


30' 


40' 


50' 


60' 





0.00000 


0.00291 


0.00582 


0.00873 


0.01164 


0.01455 


0.01746 


1 


0.01746 


. 02036 


0.02328 


0.02619 


0.02910 


0.03201 


. 03492 


88 


2 


0.03492 


0.03783 


0.04075 


0.04366 


0.04658 


0.04949 


0.05241 


87 


3 


0.05241 


. 05533 


0.05824 


0.06116 


0.06408 


0.06700 


0.06993 


86 


4 


0.06993 


0.07285 


0.07578 


0.07870 


0.08163 


0.08456 


. 08749 


85 


5 


0.08749 


0.09042 


0.09335 


0.09629 


0.09923 


0.10216 


0.10510 


84 


6 


0.10510 


. 10805 


0.11099 


0.11394 


0.11688 


0.11983 


0.12278 


83 


7 


0.12278 


0.12574 


0.12869 


0.13165 


0.13461 


0.13758 


. 14054 


82 


8 


0.14054 


0.14351 


0.14648 


0.14945 


0.15243 


0.15540 


0.15838 


81 


9 


0.15838 


0.16137 


. 16435 


0.16734 


0.17033 


0.17333 


0.17633 


80 


10 


0.17633 


0.17933 


0.18233 


0.18534 


0.18835 


0.19136 


0.19438 


79 


11 


0.19438 


0.19740 


. 20042 


. 20345 


0.20648 


0.20952 


0.21256 


78 


12 


0.21256 


0.21560 


0.21864 


0.22169 


22475 


0.22781 


0.23087 


77 


13 


0.23087 


0.23393 


0.23700 


. 24008 


0.24316 


. 24624 


. 24933 


76 


14 


0.24933 


0.25242 


0.25552 


0.25862 


0.26172 


0.26483 


0.26795 


75 


15 


0.26795 


0.27107 


0.27419 


0.27732 


0.28046 


0.28360 


0.28675 


74 


16 


0.28675 


0.28990 


0.29305 


0.29621 


0.29938 


0.30255 


0.30573 


73 


17 


0.30573 


0.30891 


0.31210 


0.31530 


0.31850 


0.32171 


0.32492 


72 


18 


0.32492 


0.32814 


0.33136 


0.33460 


0.33783 


0.34108 


0.34433 


71 


19 


0.34433 


0.34758 


0.35085 


0.35412 


0.35740 


0.36068 


0.36397 


70 


20 


0.36397 


0.36727 


0.37057 


0.37388 


0.37720 


0.38053 


0.38386 


69 


21 


0.38386 


0.38721 


0.39055 


0.39391 


0.39727 


0.40065 


0.40403 


68 


22 


0.40403 


0.40741 


0.41081 


0.41421 


0.41763 


0.42105 


0.42447 


67 


23 


0.42447 


0.42791 


0.43136 


0.43481 


0.43828 


0.44175 


0.44523 


66 


24 


0.44523 


0.44872 


0.45222 


0.45573 


0.45924 


0.46277 


0.46631 


65 


25 


0.46631 


0.46985 


0.47341 


0.47698 


0.48055 


0.48414 


0.48773 


64 


26 


0.48773 


0.49134 


0.49495 


0.49858 


. 50222 


0.50587 


. 50953 


63 


27 


0.50953 


0.51320 


0.51688 


0.52057 


0.52427 


0.52798 


0.53171 


62 


28 


0.53171 


0.53545 


0.53920 


. 54296 


0.54674 


0.55051 


0.55431 


61 


29 


0.55431 


0.55812 


0.56194 


0.56577 


0.56962 


0.57348 


0.57735 


60 


30 


0.57735 


0.58124 


0.58513 


0.58905 


. 59297 


0.59691 


0.60086 


59 


31 


0.60086 


0.60483 


0.60881 


0.61280 


0.61681 


. 62083 


. 62487 


58 


32 


0.62487 


. 62892 


. 63299 


0.63707 


0.64117 


0.64528 


0.64941 


57 


33 


0.61941 


. 65355 


0.65771 


0.66189 


0.66608 


0.67028 


0.67451 


56 


34 


0.67451 


0.67875 


0.68301 


. 68728 


0.69157 


0.69588 


0.70021 


55 


35 


0.70021 


0.70455 


0.70891 


0.71329 


0.71769 


0.72211 


0.72654 


54 


36 


0.72654 


0.73100 


0.73547 


0.73996 


. 74447 


0.74900 


0.75355 


53 


37 


0.75355 


0.75812 


0.76272 


0.76733 


0.77196 


0.77661 


0.78129 


52 


38 


0.78129 


0.78598 


0.79070 


0.79544 


0.80020 


. 80498 


0.80978 


51 


39 


0.80978 


0.81461 


0.81946 


0.82434 


0.82923 


0.83415 


0.83910 


50 


40 


0.83910 


0.84407 


0.84906 


0.85408 


0.85912 


0.86419 


0.86929 


49 


41 


0.86929 


0.87441 


0.87955 


0.88473 


. 88992 


0.89515 


0.90040 


48 


42 


0.90040 


0.90569 


0.91099 


0.91633 


0.92170 


0.92709 


0.93252 


47 


43 


0.93252 


0.93797 


0.94345 


0.94896 


0.95451 


0.96008 


0.96569 


46 


44 


0.96569 


0.97133 


0.97700 


0.98270 


0.98843 


0.99420 


1 . 00000 


45 




60' 


50' 


40' 


30' 


20' 


10' 


0' 


8 

§ 

Q 


COTANGENT 


k 


A 





77 



T 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



Natural Cotangents and Tangents 



o 
i 

2 
3 
4 

5 
6 
7 
8 
9 

10 
II 
12 
13 
14 

15 
16 
17 
18 
19 

20 
21 

22 
23 
24 

25 
26 

27 
28 
29 

30 
31 
32 
33 
34 

35 
36 
37 
38 
39 

40 
41 
42 
43 
44 



COTANGENT 



0' 



10' 



Ik 



00.00000 
57.28996 
28.63625 
19.08114 
14.30067 

11.43005 
9.51436 
8.14435 
7.11537 
6.31375 

5.67128 
5.14455 
4.70463 
4.33148 

4.01078 

3.73205 
3.48741 
3.27085 
3.07768 
2.90421 

2.74748 
2.60509 
2.47509 
2.35585 
2.24604 

2.14451 
2.05030 
1.96261 
1 . 88073 
1 . 80405 

1.73205 
1.66428 
1.60033 
1 . 53987 
1.48256 

1.42815 
1.37638 
1 . 32704 
1 . 27994 
1.23490 

1.19175 

1.15037 
1.11061 
1.07237 
1.03553 



60' 



343.77371 
49.10388 
26.43160 
18.07498 
13.72674 

11.05943 
9.25530 
7.95302 
6.96823 
6.19703 

5.57638 
5.06584 
4.63825 
4.27471 
3.96165 



20' 



30' 



40' 



171.88540 114.58865 



68909 
44951 
23714 
04749 



2.87700 

2.72281 
2.58261 
2.45451 
2.33693 
2.22857 

2.12832 
2.03526 
1.94858 
1 . 86760 
1.79174 

1.72047 
1.65337 
1.59002 
1.53010 
1.47330 



41934 
36800 
31904 
27230 
22758 



1.18474 
1 . 14363 
1.10414 
1.06613 
1.02952 



50' 



42.96408 
24.54176 
17.16934 
13.19688 

10.71191 
9.00983 
7.77035 
6.82694 
6.08444 

5.48451 
4.98940 
4.57363 
4.21933 
3.91364 



64705 
41236 
20406 
01783 
85023 

69853 
56046 
43422 
31826 
21132 



2.11233 



02039 
93470 



1.85462 
1.77955 



70901 
64256 



157981 



52043 
46411 

41061 
35968 
31110 
26471 
22031 

17777 
13694 



1.09770 



05994 
02355 



38.18846 
22.90377 
16.34986 
12.70621 

10.38540 
8.77689 
7.59575 
6.69116 
5.97576 

5.39552 
4.91516 
4.51071 
4.16530 
3.86671 

3.60588 
3.37594 
3.17159 
2.98869 
2.82391 

2.67462 
2.53865 
2.41421 
2.29984 
2.19430 

2.09654 
2.00569 
1.92098 
1.84177 
1.76749 

1.69766 
1.63185 
1.56969 
1.51084 
1.45501 

1.40195 
1.35142 
1.30323 
1.25717 
1.21310 

1 . 17085 
1.13029 
1.09131 
1.05378 
1.01761 



85.93979 
34.36777 
21.47040 
15.60478 
12.25051 

10.07803 
8.55555 
7.42871 
6.56055 
5.87080 

5.30928 
4.84300 
4.44942 
4.11256 
3.82083 

3.56557 
3.34023 
3.13972 
2.96004 
2.79802 

2.65109 
2.51715 
2.39449 
2.28167 
2.17749 

2.08094 
1.99116 
1.90741 
1.82907 
1.75556 

1.68643 
1.62125 
1.55966 
1.50133 
1 . 44598 

1.39336 
1.34323 
1.29541 
1.24969 
1.20593 



16398 
12369 
08196 
04766 



1.01170 



30' 



20' 



50' 



68.75009 
31.24158 
20.20555 
14.92442 
11.82617 

978817 
8.34496 
7.26873 
6.43484 
5.76937 

5.22566 
4.77286 
4.38969 
4.06107 
3.77595 

3.52609 
3.30521 
3.10842 
2.93189 
2.77254 

2.62791 
2.49597 
2.37504 
2.26374 
2.16090 

2.06553 
1 . 97680 
1.89100 
1.81649 
1.74375 

1 . 67530 
1.61074 
1.51972 
1.49190 
1.43703 

1.38484 
1.33511 

1.28764 
1.24227 
1.19882 

1.15715 
1.11713 
1 . 07864 
1.04158 
1 . 00583 



60' 



10' 



57.28996 
28.63625 
19.08114 
14.30067 
11.43005 

9.51436 

8.14435 
7.11537 
6.31375 
5.67128 

5.14455 

4.70463 
4.33118 
4.01078 
3.73205 

3.48741 
3.27085 
3.07768 
2.90121 
2.74748 

2.60509 
2.47509 
2.35585 
2.24604 

2.11151 

2.05030 
1 . 96261 
1.88073 
1 . 80405 
1 . 73205 

1.66428 
1.60033 
1.53987 
1.48256 
1.42815 

1.37638 
1.32704 
1.27994 
1 . 23490 
1.19175 

1.15037 
1.11061 
1.07237 
1.03553 
1 . 00000 



<v 



TANGENT 



89 
88 
87 
86 
85 

84 

83 
82 
81 
80 

79 
78 
77 
76 
75 

74 
73 

72 
71 
70 

69 
68 
67 
66 
65 

64 
63 
62 
61 
60 

59 
58 

57 
56 
55 

51 
53 

52 
51 
50 

49 

48 
47 
46 
45 



78 





l 


5 "~ J L -^J 






THE CHICAGO NUT MANUFACTURING 


cu : 




r 




1 


Natural Sines and Cosines 





SINE 




0' 


10' 


20' 


30' 


40' 


50' 


60' 


0.00000 


0.00291 


. 00582 


. 00873 


0.01164 


0.01454 


0.01745 


89 


1 


0.01745 


0.02036 


0.02327 


0.02618 


0.02908 


0.03199 


0.03490 


88 


2 


0.03490 


0.03781 


0.04071 


. 04362 


0.04653 


. 04943 


. 05234 


87 


3 


0.05234 


0.05524 


0.05814 


0.06105 


0.06395 


0.06685 


0.06976 


86 


4 


0.06976 


0.07266 


0.07556 


0.07846 


0.08136 


0.08426 


0.08716 


85 


5 


0.08716 


0.09005 


0.09295 


0.09585 


0.09874 


0.10164 


0.10453 


84 


6 


0.10453 


0.10742 


0.11031 


0.11320 


0.11609 


0.11898 


0.12187 


83 


7 


0.12187 


0.12476 


0.12764 


0.13053 


0.13341 


0.13629 


0.13917 


82 


8 


0.13917 


0.14205 


0.14493 


0.14781 


0.15069 


0.15356 


0.15643 


81 


9 


0.15643 


0.15931 


0.16218 


0.16505 


0.16792 


0.17078 


0.17365 


80 


10 


0.17365 


0.17651 


0.17937 


0.18224 


0.18500 


0.18795 


0.19081 


79 


11 


0.19081 


0.19366 


. 19652 


0.19937 


0.20222 


0.20507 


0.20791 


78 


12 


0.20791 


0.21076 


0.21360 


0.21644 


0.21928 


0.22212 


0.22495 


77 


13 


0.22495 


0.22778 


0.23062 


0.23345 


0.23627 


0.23910 


0.24192 


76 


14 


0.24192 


0.24474 


0.24756 


0.25038 


0.25320 


0.25601 


0.25882 


75 


15 


0.25882 


0.26163 


0.26443 


0.26724 


0.27004 


0.27284 


0.27564 


74 


16 


0.27564 


0.27843 


0.28123 


. 28402 


0.28680 


0.28959 


0.29237 


73 


17 


0.29237 


0.29515 


0.29793 


0.30071 


0.30348 


0.30625 


. 30902 


72 


18 


0.30902 


0.31178 


. 31454 


0.31730 


0.32006 


0.32282 


0.32557 


71 


19 


0.32557 


0.32832 


0.33106 


0.33381 


0.33655 


0.33929 


0.34202 


70 


20 


0.34202 


. 34475 


0.34748 


0.35021 


0.35293 


0.35565 


0.35837 


69 


21 


0.35837 


0.36108 


0.36379 


0.36650 


0.36921 


0.37191 


0.37461 


68 


22 


0.37461 


0.37730 


0.37999 


. 38268 


0.38537 


0.38805 


0.39073 


67 


23 


0.39073 


0.39341 


0.39608 


0.39875 


0.40142 


0.40408 


0.40674 


66 


24 


0.40674 


0.40939 


0.41204 


0.41469 


0.41734 


0.41998 


0.42262 


65 


25 


0.42262 


0.42525 


0.42788 


0.43051 


0.43318 


0.43575 


0.43837 


64 


26 


0.43837 


0.44098 


0.44359 


0.44620 


0.44880 


0.45140 


0.45399 


63 


27 


0.45399 


0.45658 


0.45917 


0.46175 


0.46433 


0.46690 


0.46947 


62 


28 


0.46947 


0.47204 


0.47460 


0.47716 


0.47971 


0.48226 


0.48481 


61 


29 


0.48481 


0.48735 


0.48989 


0.49242 


0.49495 


0.49748 


0.50000 


60 


30 


0.50000 


0.50252 


0.50503 


0.50754 


0.51004 


0.51254 


0.51504 


59 


31 


0.51504 


0.51753 


0.52002 


0.52250 


. 52498 


0.52745 


. 52992 


58 


32 


0.52992 


0.53238 


. 53484 


0.53730 


0.53975 


0.54220 


. 54464 


57 


33 


0.54464 


0.54708 


0.54951 


0.55194 


0.55436 


0.55678 


0.55919 


56 


34 


0.55919 


0.56160 


0.56401 


0.56641 


0.56880 


0.57119 


0.57358 


55 


35 


0.57358 


0.57596 


0.57833 


0.58070 


0.58307 


0.58543 


0.58779 


54 


36 


0.58779 


0.59014 


0.59248 


. 59482 


0.59716 


. 59949 


0.60182 


53 


37 


0.60182 


0.60414 


0.60645 


0.60876 


0.61107 


0.61337 


0.61566 


52 


38 


0.61566 


0.61795 


0.62024 


0.62251 


0.62479 


0.62706 


. 62932 


51 


39 


0.62932 


0.63158 


0.63383 


0.63608 


0.63832 


0.64056 


0,64279 


50 


40 


0.64279 


0.64501 


0.64723 


0.64945 


0.65166 


0.65386 


0.65606 


49 


41 


0.65606 


0.65825 


. 66044 


0.66262 


0.66480 


0.66697 


0.66913 


48 


42 


0.66913 


0.67129 


0.67344 


0.67559 


0.67773 


0.67987 


. 68200 


47 


43 


0.68200 


0.68412 


0.68624 


. 68835 


0.69046 


0.69256 


. 69466 


46 


44 


0.69466 


0.69675 


0.69883 


0.70091 


0.70298 


0.70505 


0.70711 


45 

T 

Q 


60' 


50' 


40' 


30' 


20' 


10' 


0' 


COSINE 


fc, 


A 



79 




Natural Cosines and Sines 



k_ 



I 


COSINE 




0' 


10' 


20' 


30' 


40' 


50' 


60' 







1 . 00000 


1.00000 


0.99998 


0.99996 


0.99993 


0.99989 


0.99985 


89 


1 


0.99985 


0.99979 


0.99973 


0.99966 


0.99958 


0.99949 


0.99939 


88 


2 


0.99939 


0.99929 


0.99917 


0.99905 


0.99892 


0.99878 


0.99863 


87 


3 


0.99863 


0.99847 


0.99831 


0.99813 


0.99795 


0.99776 


0.99756 


86 


4 


0.99756 


0.99736 


0.99714 


0.99692 


0.99668 


0.99644 


0.99619 


85 


5 


0.99619 


0.99594 


0.99567 


0.99540 


0.99511 


0.99482 


0.99452 


84 


6 


0.99452 


0.99421 


0.99390 


0.99357 


0.99324 


0.99290 


0.99255 


83 


7 


0.99255 


0.99219 


0.99182 


0.99144 


0.99106 


0.99067 


0.99027 


82 


8 


0.99027 


0.98986 


0.98944 


0.98902 


0.98858 


0.98814 


0.98769 


81 


9 


0.98769 


0.98723 


0.98676 


0.98629 


0.98580 


0.98531 


0.98481 


80 


10 


0.98481 


0.98430 


0.98378 


0.98325 


0.98272 


0.98218 


0.98163 


79 


11 


0.98163 


0.98107 


0.98050 


0.97992 


0.97934 


0.97875 


0.97815 


78 


12 


0.97815 


0.97754 


0.97692 


0.97630 


0.97566 


0.97502 


0.97437 


77 


13 


0.97437 


0.97371 


0.97304 


0.97237 


0.97169 


0.97100 


0.97030 


76 


14 


0.97030 


0.96959 


0.96887 


0.96815 


0.96742 


0.96667 


0.96593 


75 


15 


0.96593 


0.96517 


0.96440 


0.96363 


0.96285 


0.96206 


0.96126 


74 


16 


0.96126 


0.96046 


0.95964 


0.95882 


0.95799 


0.95715 


0.95630 


73 


17 


0.95630 


0.95515 


0.95459 


0.95372 


0.95284 


0.95195 


0.95106 


72 


18 


0.95106 


0.95015 


0.94924 


0.94832 


0.94740 


0.94646 


0.94552 


71 


19 


0.94552 


0.94457 


0.94361 


0.94264 


0.94167 


0.94068 


0.93969 


70 


20 


0.93969 


0.93869 


0.93769 


0.93667 


0.93565 


0.93462 


0.93358 


69 


21 


0.93358 


0.93253 


0.93148 


0.93042 


0.92935 


0.92827 


0.92718 


68 


22 


0.92718 


0.92609 


0.92499 


0.92388 


0.92276 


0.92164 


0.92050 


67 


23 


0.92050 


0.91936 


91822 


0.91706 


0.91590 


0.91472 


0.91355 


66 


24 


0.91355 


0.91236 


0.91116 


0.90996 


0.90875 


0.90753 


0.90631 


65 


25 


0.90631 


0.90507 


0.90383 


0.90259 


0.90133 


0.90007 


0.89879 


64 


26 


0.89879 


0.89752 


0.89623 


0.89493 


0.89363 


0.89232 


0.89101 


63 


27 


0.89101 


0.88968 


0.88835 


0.88701 


0.88566 


0.88431 


0.88295 


62 


28 


0.88295 


0.88158 


0.88020 


0.87882 


0.87743 


0.87603 


0.87462 


61 


29 


0.87462 


0.87321 


0.87178 


0.87036 


0.86892 


0.86748 


0.86603 


60 


30 


0.86603 


0.86457 


0.86310 


0.86163 


0.86115 


0.85866 


0.85717 


59 


31 


0.85717 


0.85567 


0.85416 


0.85264 


0.85112 


0.84959 


0.84805 


58 


32 


0.84805 


0.84650 


0.84495 


0.84339 


0.84182 


0.84025 


0.83867 


57 


33 


0.83867 


0.83708 


0.83549 


0.83389 


0.83228 


0.83066 


0.82904 


56 


34 


0.82904 


0.82741 


0.82577 


0.82413 


0.82248 


0.82082 


0.81915 


55 


35 


0.81915 


0.81748 


0.81580 


0.81412 


0.81242 


0.81072 


0.80902 


54 


36 


0.80902 


0.80730 


0.80558 


0.80386 


0.80212 


0.80038 


0.79864 


53 


37 


0.79864 


0.79688 


0.79512 


0.79335 


0.79158 


0.78980 


0.78801 


52 


38 


0.78801 


0.78622 


0.78412 


0.78261 


0.78079 


0.77897 


0.77715 


51 


39 


0.77715 


0.77531 


0.77347 


0.77162 


0.76977 


0.76791 


0.76601 


50 


40 


0.76604 


0.76417 


0.76229 


0.76041 


0.75851 


0.75661 


0.75471 


49 


41 


0.75471 


0.75280 


0.75088 


0.74896 


0.74703 


0.74509 


0.74314 


48 


42 


0.74314 


0.74120 


0.73924 


0.73728 


0.73531 


0.73333 


0.73135 


47 


43 


0.73135 


0.72937 


0.72737 


0.72537 


0.72337 


0.72136 


0.71934 


46 


44 


0.71934 


0.71732 


0.71529 


0.71325 


0.71121 


0.70916 


0.70711 


45 




60' 50' 


40' 


30' 


20' 


10' 


0' 


1 




SINE 





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HICAGO NUT MANUrAUIUMMJ uu. 




t 


^ 


Decim 


al Equivalents of Millimeters 


M/m 


Inches 


M/m 


Inches 


M/m 


Inches 


M/m 


Inches 


.1 


. 00394 


4.1 


.16141 


8.1 


.31889 


12.1 


.47637 


.2 


. 00787 


4 2 


. 16535 


8.2 


.32283 


12.2 


.48031 


.3 


.01181 


4.3 


.16929 


8.3 


.32677 


12.3 


.48425 


.4 


.01575 


4.4 


. 17322 


8.4 


. 33070 


12.4 


.48818 


.5 


.01968 


4.5 


.17716 


8.5 


.33464 


12.5 


.49212 


.6 


. 02362 


4.6 


.18110 


8.6 


.33858 


12.6 


.49606 


.7 


.02756 


4.7 


. 18503 


8.7 


.34251 


12.7 


.49999 


.8 


.03149 


4.8 


. 18897 


8.8 


. 34645 


12.8 


. 50393 


.9 


. 03543 


4.9 


. 19291 


8.9 


.35039 


12.9 


. 50787 


1. 


.03937 


5, 


.19685 


9. 


.35433 


13. 


.51181 


1.1 


.04330 


5.1 


. 20078 


9.1 


.35826 


13.1 


.51574 


1.2 


. 04724 


5.2 


. 20472 


9.2 


, 36220 


13.2 


.51968 


13 


.05118 


5.3 


.20866 


9.3 


.36614 


13.3 


.52362 


1.4 


.05512 


5.4 


.21259 


9.4 


.37007 


13.4 


.52755 


1.5 


.05905 


5.5 


.21653 


9.5 


.37401 


13.5 


.53149 


1.6 


. 06299 


5.6 


.22047 


9.6 


. 37795 


13.6 


.53543 


1.7 


. 06692 


5.7 


.22440 


9.7 


.38188 


13.7 


.53936 


1.8 


.07086 


5.8 


.22834 


9.8 


. 38582 


13.8 


.54330 


1.9 


. 07480 


5.9 


. 23228 


9.9 


.38976 


13.9 


. 54724 


2. 


. 07874 


6. 


.23622 


10. 


.39370 


14. 


.55118 


2.1 


. 08267 


6,1 


.24015 


10.1 


.39763 


14.1 


.55511 


2.2 


.08661 


6.2 


.24409 


10.2 


.40157 


14.2 


. 55905 


2.3 


.09055 


6.3 


.24803 


10.3 


.40551 


14.3 


. 56299 


2.4 


. 09448 


6.4 


.25196 


10.4 


.40944 


14.4 


. 56692 


2.5 


. 09842 


6.5 


.25590 


10.5 


.41338 


14.5 


. 57086 


2.6 


.10236 


6.6 


.25984 


10.6 


.41732 


14.6 


. 57480 


2.7 


. 10629 


6.7 


.26377 


10.7 


.42125 


14.7 


.57873 


2.8 


.11023 


6.8 


.26771 


10.8 


.42519 


14.8 


. 58267 


2.9 


.11417 


6.9 


.27165 


10.9 


.42913 


14.9 


.58661 


3. 


.11811 


7. 


.27559 


11. 


.43307 


15. 


.59055 


3.1 


. 12204 


7.1 


.27952 


11.1 


.43700 


15.5 


.61023 


3.2 


.12598 


7.2 


.28346 


11.2 


.44094 


16. 


.62992 


3.3 


.12992 


7.3 


.28740 


11.3 


.44488 


16.5 


.64960 


3.4 


.13385 


7.4 


.29133 


11.4 


.44881 


17. 


.66929 


3.5 


.13779 


7.5 


.29527 


11.5 


.45275 


17.5 


.68897 


3.6 


.14173 


7.6 


.29921 


11.6 


.45669 


18. 


.70866 


3.7 


.14566 


7.7 


.30314 


11.7 


.46062 


18.5 


.72834 


3.8 


. 14960 


7.8 


.30708 


11.8 


.46456 


19. 


.74803 


3.9 


. 15354 


7.9 


.31102 


11.9 


.46850 


19.5 


.76771 


4. 


. 15748 


8. 


.31496 


12. 


.47244 


20. 


.78740 


L 


(List concluded o 


n following page) 

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Decimal Equivalents of Millimeters 

(Concluded) 



M/m 



20.5 

21. 

21,5 

22. 

22.5 

23. 

23.5 

24. 

24.5 

25. 

25.5 

26. 

26.5 

27. 

27.5 

28. 

28.5 

29. 

29.5 

30. 

30.5 

31. 

31.5 

32. 

32.5 

33. 

33.5 

34. 

34.5 

35. 

35.5 

36. 

36.5 

37. 

37.5 

38. 

38.5 

39. 

39.5 

40. 



Inches 



.80708 
.82677 
.84645 
.86614 
.88582 
.90551 
.92519 
.94488 
.96456 
.98425 
1.00393 
1.02362 
1.04330 
1.06299 
1.08267 
1.10236 
1.12204 
1.14173 
1.16141 
1.18110 
1.20078 
1.22047 
1.24015 
1.25984 
1.27952 
1.29921 
1.31889 
1.33858 
1.35826 
1.37795 
1.39763 
1.41732 
1.43700 
1.45669 
1.47637 
1.49606 
1.51574 
1.53543 
1.55511 
1.57480 



M/m 



40.5 

41. 

41.5 

42. 

42.5 

43. 

43.5 

44. 

44.5 

45. 

45.5 

46. 

46.5 

47. 

47.5 

48. 

48.5 

49. 

49.5 

50. 

50.5 

51. 

51.5 

52. 

52.5 

53. 

53.5 

54. 

54.5 

55. 

55.5 

56. 

56,5 

57. 

57.5 

58. 

58.5 

59. 

59.5 

60. 



Indies 



1.59448 

1.61417 

1.63385 

1.65354 

1.67322 

1.69291 

1.71259 

1.73228 

1.75196 

1.77165 

1.79133 

1.81102 

1.83070 

1.85039 

1.87007 

1.88976 

1.90944 

1.92913 

1.94881 

1.96850 

1.98818 

2.00787 

2.02755 

2.04724 

2.06692 



.08661 
.10629 
. 12598 
.14566 
.16535 
.18503 
. 20472 
. 22440 
24409 
26377 
28346 
30314 
32283 
34251 
36220 



M/m 



60.5 

61. 

61.5 

62. 

62.5 

63. 

63.5 

64. 

64.5 

65. 

65.5 

66. 

66.5 

67. 

67.5 

68. 

68.5 

69. 

69.5 

70. 

70.5 

71. 

71.5 

72. 

72.5 

73. 

73.5 

74. 

74.5 

75. 

75.5 

76. 

76.5 

77. 

77.5 

78. 

78.5 

79. 

79.5 

80. 



Inches 



2.38188 
2.40157 
2.42125 
2.44094 
2.46062 
2.48031 
49999 
51968 
53936 
55905 
57873 
59842 
2.61810 
2.63779 
65747 
67716 
69684 
71653 
73621 
75590 
77558 
79527 
81495 
83464 
85432 
2.87401 
2.89369 
2.91338 
2.93306 
2.95275 
2.97243 
2.99212 
3.01180 
3.03149 
3.05117 
3.07086 
3.09054 
3.11023 
3.12991 
3.14960 



M/n 



80.5 
81. 
81.5 
82. 
82.5 
83. 
83.5 
84. 
84.5 
85. 
85.5 
86. 
86.5 
87. 
87.5 
88. 
88.5 
89. 
89.5 
90. 
90.5 
91. 
91.5 
92. 
92.5 
93. 
93.5 
94. 
94.5 
95. 
95.5 
96. 
96.5 
97. 
97.5 
98. 
98.5 
99. 
99.5 
100. 




Inches 



3.16928 
3.18897 
3.20865 
3.22834 
3.24802 
3.26771 
3.28739 
3.30708 
3.32676 
3.34645 
3.36613 
3.38582 
3.40550 
3.42519 
3.44487 
3.46456 
3.48424 
3.50393 
3.52361 
54330 
56298 
58267 
60235 
62204 
64172 
66141 
68109 
70078 
3.72046 
3.74015 
3.75983 
3,77952 
3.79920 
3.81889 
3.83857 
3.85826 
3.87794 
3.89763 
3.91731 
3.93700 



ku 



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THE CHICAGO NUT MANUFACTURING CO. 



^ 



Metric Conversion Tables 

U. S. to Metric 

Linear 
1 inch =25.4001 millimeters. 
1 foot = 0.304801 meters. 
1 yard = 0.914402 meters. 
1 mile = 1.60935 kilometers. 

Square 
1 square inch = 6,452 square centimeters. 
1 square foot = 9.290 square decimeters. 
1 square yard = . 836 square meters, ^ 

Cubic l9,iC^-/^' 

/ ff G2& 1 cubic inch = 16 . 387 cubic centimeters. /, t&0 ~ 0Y\JL CX. 

*** **' 1 cubic foot = 0.02832 cubic meters. ' "° * * * 

1 cubic yard = 0.765 cubic meters. 

Weight 
1 grain = 64.7989 milligrammes. 
1 avoirdupois ounce = 28.3495 grammes. 
1 troy ounce = 31.10348 grammes. 
1 avoirdupois pound = 0.45359 kilogrammes. 

Capacity 
1 fluid drachm = 3.70 cubic centimeters. 
1 fluid ounce = 29.57 milliliters. 
1 quart = 0.94636 liters. 
1 gallon = 3.78544 liters. 



f 'ff 



Metric to U. S. 

Linear 
1 meter = 39.3700 inches. 
1 meter = 3.28083 feet. 
1 meter = 1.09361 yards. 
1 kilometer = 0.62137 miles. 

Square 
1 square centimeter = 0.1550 square inches. 
1 square meter = 10.7640 square feet. 
1 square meter = 1.196 square yards. 

Cubic 
1 cubic centimeter = 0.0610 cubic inches. 
1 cubic meter = 35.314 cubic feet. 
1 cubic meter = 1.308 cubic yards. 

Weight 
1 milligramme = 0.01543 grains. 
1 kilogramme = 15432.36 grains. 
1 hectogramme = 3 . 5274 avoirdupois ounces. 
1 kilogramme = 2.20462 avoirdupois pounds. 

Capacity 
1 milliliter = 0.27 fluid drachms. 
1 centiliter = 0.338 fluid ounces. 
1 liter = 1.0567 quarts. 
1 dekaliter = 2.6417 gallons. 



&_ 



A 



83 



&_ 



Weights and Measures 

Measures of Length. 

1 mile=1760 yards=5280 feet. 

1 yard = 3 feet = 36 inches. 

1 foot = 12 inches. 

The following measures of length are also used occasionally: 

1 mil = 0.001 inch, 1 fathom = 2 yards = 6 feet. 

1 rod = 5.5 yards = 16.5 feet. 1 hand = 4 inches. 1 span = 9 inches. 

Surveyor's Measure. 

1 mile = 8 furlongs = 80 chains. 

1 furlong = 10 chains = 220 yards. 

1 chain = 4 rods = 22 yards = 66 feet = 100 links. 

1 link = 7.92 inches. 

Nautical Measure. 
1 league = 3 nautical miles. 

1 nautical mile (knot) =6080.26 feet = 1.1516 statute mile. 
One degree at the equator = 60 nautical miles = 69.168 statute miles. 
360 degrees = 21,600 nautical miles = 24,874.5 statute miles = circumference of 
earth at the equator. 

Square Measure. 
1 square mile = 640 acres = 6400 square chains. 
1 acre = 10 square chains = 4840 square yards = 43,560 square feet. 
1 square chain = 16 square rods = 484 square yards =4356 square feet. 
1 square rod = 30.25 square yards = 272.25 square feet = 625 square links. 
1 square yard = 9 square feet. 
1 square foot = 144 square inches. 
An acre is equal to a square, the side of which is 208.7 feet. 

Measure used for Diameters and Areas of Electric Wires. 

1 circular inch = area of circle 1 inch in diameter = 0.7854 square inch. 

1 circular inch = 1,000,000 circular mils. 

1 square inch = 1.2732 circular inch = 1,273,239 circular mils. 

A circular mil is the area of a circle 0.001 inch in diameter. 

Cubic Measure. 

1 cubic yard = 27 cubic feet. t 

1 cubic foot = 1728 cubic inches. 

The following measures are also used for wood and masonry: 

1 cord of wood = 4 x 4 x 8 feet = 128 cubic feet. 

1 perch of masonry = 16 J^ x 1J^ x 1 foot = 24 % cubic feet. 

Shipping Measure. 

For measuring entire internal capacity of a vessel: 

1 register ton = 100 cubic feet. 
For measurement of cargo : 

1 U.S. shipping ton = 40 cubic feet = 32.143 U.S. bushels = 31.16 Imperial 

bushels. 
1 British shipping ton = 42 cubic feet = 33.75 U.S. bushels = 32.72 Imperial 
bushels. 

Dry Measure 
1 bushel (U. S. or Winchester struck bushel) =1.2445 cubic foot =2150.42 cubic 

inches. 
1 bushel = 4 pecks = 32 quarts = 64 pints. 
1 peek =8 quarts = 16 pints. 
1 quart = 2 pints. 



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THE CHICAGO NUT MANUFACTURING CO. 



"^ 



1 heaped bushel = 134 struck bushel. 
1 cubic foot = 0.8036 struck bushel. 

1 British Imperial bushel =8 Imperial gallons = 1.2837 cubic foot = 2218.19 cubic 
inches. 

Liquid Measure 
1 U. S. Gallon = 0.1337 cubic foot = 231 cubic inches =4 quarts = 8 pints. 
1 quart =2 pints = 8 gills. 
1 pint =4 gills. 

1 British Imperial gallon = 1.2003 U. S. gallon = 277.27 cubic inches. 
1 cubic foot =7.48 U. S. gallons. 

Old Liquid Measure 

1 tun = 2 pipes = 3 puncheons. 

1 pipe or butt = 2 hogsheads = 4 barrels = 126 gallons. 

1 puncheon = 2 tierces = 84 gallons, 

1 hogshead = 2 barrels = 63 gallons. 

1 tierce = 42 gallons. 

1 barrel = 31 l A gallons. 

Apothecaries' Fluid Measure 
1 U. S. fluid ounce — 8 drachms = 1.805 cubic inch = 1/128 U. S. gallon. 
1 fluid drachm = 60 minims. 
1 British fluid ounce = 1.732 cubic inch. 

Measures of Weight 

Avoirdupois or Commercial Weight 
1 gross or long ton = 2240 pounds. 1 pound = 16 ounces = 7000 grains. 

1 net or short ton = 2000 pounds. 1 ounce = 16 drachms = 437.5 grains. 

The following measures for weight are now seldom used in the United States: 
1 hundred-weight =4 quarters = 112 pounds (1 gross or long ton = 20 hundred- 
weights) ; 1 quarter =28 pounds; 1 stone = 14 pounds; I quintal = 100 pounds. 

Troy Weight, Used for Weighing Gold and Silver 

1 pound = 12 ounces = 5760 grains. 

1 ounce = 20 pennyweights = 480 grains. 

1 pennyweight = 24 grains. 

1 carat (used in weighing diamonds) =3.168 grains. 

1 grain Troy = 1 grain avoirdupois = 1 grain apothecaries' weight. 

Apothecaries' Weight 

1 pound = 12 ounces = 5760 grains. 1 drachm = 3 scruples = 60 grains. 

1 ounce = 8 drachms = 480 grains. 1 scruple = 20 grains. 

Measures of Pressure 

1 pound per square inch — 144 pounds per square foot = 0.068 atmosphere = 

2.042 inches of mercury at 62 degrees F. =27.7 inches of water at 62 degrees 

F. =2.31 feet of water at 62 degrees F. 
1 atmosphere = 30 inches of mercury at 62 degrees F. = 14.7 pounds per square 

inch =2116.3 pounds per square foot = 33.95 feet of water at 62 degrees F. 
1 foot of water at 62 degrees F. = 62.355 pounds per square foot =0.433 pound per 

square inch. 
1 inch of mercury at 62 degrees F. = 1.132 foot of water = 13.58 inches of water = 

0.491 pound per square inch. 



Miscellaneous 



1 great gross = 12 gross = 144 dozen. 
1 gross = 12 dozen = 144 units. 
1 dozen = 12 units. 
1 score = 20 units. 



1 quire = 24 sheets. 

1 ream = 20 quires = 480 sheets. 

1 ream printing paper = 500 sheets 



^. 



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85 



w*~ 



si 






^ 
^ 



> 



I 






* 

^ 

-* 






^ 



f 






* 


4 

^ 
4 



T 



THE CHICAGO NUT MANUFACTURING CO. 



"^ 



Useful Information 

To find the circumference of a circle, multiply the diameter by 
3.1416. 

\ To find the diameter of a circle, multiply the circumference by 
.31831. 

To find the area of a circle, multiply the square of the diameter 
by .7854. 

H To find the surface of a ball (sphere), multiply the square of the 
diameter by 3.1416. 

. To find the side of an equal square, multiply the diameter by .8862. 

\ To find the cubic inches (volume) in a ball, multiply the cube of 
the diameter by .5236. 

Doubling the diameter of a pipe increases its capacity four times. 

The radius of a circle X 6.283185= the circumference. 
i The square of the diameter of a circle X .7854= the area. 
\ The square of the circumference of a circle X .07958= the area. 

Half the circumference of a circle X half its diameter = the area. 
\i The circumference of a circle X .159155= the radius. 
1 The square root of the area of a circle X .56419= the radius. 

The square root of the area of a circle X 1.12838= the diameter. 

A gallon of water (U.S. standard) weighs S}4 pounds and con- 
tains 231 cubic inches. 

A cubic foot of water contains 1}4 gallons, 1728 cubic inches, and 
weighs 62J^ pounds at a temperature of about 39 degrees 
Fahrenheit. The weight changes slightly above and below 
this temperature. 

To find the pressure in pounds per square inch of a column of water, 
multiply the height of the column in feet by .434. 

Steam rising from water at its boiling point (212 degrees F.) has a 
pressure equal to that of the atmosphere at sea level (14.7 
pounds per square inch). 



86 



Table of Decimal and Millimeter Equivalents 
of Fractions of an Inch 



Fraction 






%■ 



%■ 



%■ 



%. 



%■ 



./ft 



n ^. 



%■ 



'%■ 



%. 



%■ 



%■ 



*%■ 



H. 



>%■ 



*S4 



25 ^. 



n*. 



*v&. 



^_ 






Decimal 






61 4. 

'■Hi! 



63 ^4. 



. ..015625 
. ..03125 
. . .046875 
. . .0625 
. ..078125 
. . .09375 
. .109375 
. ..125 
. . .140625 
.15625 
.171875 
.1875 
. .203125 

. .21875 
. . .234375 
. . .250 
. . .265625 
- . .28125 
. .296875 
. . .3125 
...328125 
. . .34375 

. .359375 
. . .375 
. . .390625 
. . .40625 
■ .421875 
. . .4375 
. .453125 
. ..46875 
. . .484375 
. . .500 
. ..515625 
. . .53125 
. . .546875 
. . .5625 
. ..578125 
. ..59375 
. . .609375 
. ..625 
. .640625 
. .65625 
..671875 
. .6875 
. .703125 

.71875 
. .734375 
..750 
. .765625 
. .78125 
. .796875 

.8125 
..828125 
..84375 
..859375 
..875 
. .890625 
. .90625 

.921875 
. .9375 
..953125 
. .96875 
. .984375 
1.0000 



.397 

.794 
1.191 
1.587 
1.984 
2.381 
2.778 
3.175 
3.572 
3.969 
4.366 
4.762 
5.159 
5.556 
5.953 
6.350 
6.747 
7.141 
7.541 
7.937 
8.334 
8.731 
9.128 
9.525 
9.922 
10.319 
10.716 
11.113 
11.509 
11.906 
12.303 
12.700 
13.097 
13.494 
13.890 
14.287 
14.684 
15.081 
15.478 
15.875 
16.272 
16.669 
17.065 
17.462 
17.859 
18.256 
18.653 
19.050 
19.447 
19.844 
20.240 
20.637 
21.034 
21.431 
21.828 
22.225 
22.622 
23.019 
23.415 
23.812 
24.209 
24.606 
25.003 
25.400 



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